If the bond angle between two adjacent hybrid orbitals is 109.5°, which is the hybridization?
a. Sp2
b. Sp3d
c. Sp3
d. Sp

Answers

Answer 1

If the bond angle between two adjacent hybrid orbitals is 109.5°, the hybridization is sp³.

In sp³ hybridization the bond angle is 109.5° and the arrangement of the molecule is tetrahedral. in  sp³ hybridization then carbon atom is bonded with the four other atom. in the  sp³ hybridization one s orbital and the three p orbitals in the same shell of the atom will combine to form the four new equal hybrid orbitals . the example of the  sp³ hybridization is the methane , CH₄.

Thus, in the  sp³ hybridization the bond angle between two adjacent hybrid orbitals is 109.5° and the molecular geometry is the tetrahedral geometry.

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Related Questions

What is the most possible effect of overexposure to chemicals?

Answers

The most possible effect of over exposure to chemicals is the weakening of immune system.

There are certain chemicals which are very harmful for the human body such as insecticides and pesticides etc.

Along with them many chemicals which occurs in gaseous state at a room temperature are also very dangerous for human health. For performing research and development procedures the exposure to these Chemicals is not that much considerable.

But when the human body is overexposed to this chemicals, the weakening in the immunity system is observed within the human body because of the contamination of the body due to these chemicals.

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What is the solubility of potassium nitrate in 20 C water in gram 100 ml?

Answers

The solubility of potassium nitrate in 20 C water in gram 100 ml is 31.6g/100mL.

Since medication compounds must be dissolved before they can be taken, solubility is a crucial consideration. In the Biopharmaceutical Classification System (BCS), solubility and rate of dissolution play a critical role since, according to Fick's first law, permeability and solubility together determine how quickly medications are absorbed across the GI tract. Without taking solubility into account, results from in vitro tests like those for HTS activity or membrane permeability may not be correctly evaluated. As it frequently fails to derive a correlation between dose and in vivo efficacy, dosing poorly soluble drugs in pharmacological animal research is extremely dangerous.

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How many ml of .50 M NaOH are required to completely titration 15.0 mL of .20 M HNO_3 solution

Answers

150ml of 0.50 M NaOH are required to completely titration, 15.0 mL of .20 M HNO₃ solution.

What is titration ?

To determine the concentration of an identified analyte, titration is a typical laboratory technique for quantitative chemical analysis. A standard solution with a known concentration and volume is prepared as the reagent, also known as the titrant or titrator.

The equivalence point, or the point at which chemically equivalent amounts of the reactants have been combined, is to be detected by the titration. The stoichiometry of the reaction determines how many reactants have been combined at the equivalence point.

Thus, 150ml of 0.50 M NaOH are required to completely titration, 15.0 mL of .20 M HNO₃ solution.

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if 14.2 g of al(no3)3 is dissolved in 655g of water, what is the boiling point of the solution (assume 100% dissociation, kb (h2o)

Answers

The boiling point of the solution is 100.208°C.

What is boiling point?

The boiling point is defined as elevation in temperature. It is a colligative property means which depends on the concentration of solute.

The temperature at which the pressure of a liquid exerted by its surroundings equals the pressure of the liquid's vapour is known as the boiling point.

At this temperature, the addition of heat causes the liquid to turn into its vapour without raising the temperature.

Molar mass of Al(NO[tex]_3[/tex])₃ = 212.996 g/mol

No. of moles = 14.2/212.996 g/mol

                      = 0.066 mol

Molarity = 0.066/655 × 1000

              = 0.1 M

i = 4 ⇒ ΔT = 0.52° × 0.1 × 4

ΔT = 0.208°

Final temperature = 100° + 0.208°

                              = 100.208°

               

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What is the correct order of the five step process used in managing hazardous materials incident?

Answers

Managing and controlling the site

Identify the problem

synchronization of resources and information management

Risk analysis and hazard identification

Decide on protective attire and gear.

STEP 1:Site Management and Control

Choose a secure entry point and take control of the affected site. Remaining people should be evacuated, and the danger zone's perimeter should be cordoned off. For rescuers and other responders who have been made aware of the situation, establish a safe staging location.

STEP 2: Finding the Issue

Recognize the items present on the premises and search for containment breaches. Find out where the danger is coming from and if it can be mitigated. Based on the materials' characteristics, their position, and their closeness to employees or the general public, make a prediction about what could happen next.

STEP 3: Hazard and Risk Assessment

Analyze the possibility of fire or explosion as well as the continuous danger of the spill or leak. Examine any bodily symptoms that everyone who was there when the danger initially appeared was displaying. This may reveal a lot about the subject matter under discussion.

STEP 4: Safety gear and clothing

Closer examination of any hazardous materials violation necessitates the use of adequate safety wear and equipment. This might be anything from a full-coverage HAZMAT suit to a positive pressure self-contained breathing device. Additionally, monitoring tools for radiation levels, air quality, and other aspects of environmental quality should be used.

STEP 5: Coordination of resources and information management

Sharing information is essential, both within the company and with outside sources like the media. All relevant resources should also be recruited to assist maintain the dangerous area safeguarded against intrusion by outside parties.

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calculate the pressure inside a tube given that the tubes colume is 5.0l its tempreature is 23 c and it contains 0.010 of hydrogen gas

Answers

Hence, the pressure inside the tube is 2.4x10-5 atm

What is Pressure?

A key idea in physics is pressure, which is measured as the amount of force per unit area acting perpendicular to a surface. The pascal (Pa), or one newton per square metre, is the SI unit for pressure. [1]

P=FA, with

Pressure is P.

A is the area of the applied force, and F is the force that is applied normal (perpendicular) to the surface.

Volume of the tube (V) = 5.0 L

Temperature (T) = 23 °C = (23 + 273.15) K = 296.15 K

Mass of hydrogen gas (m) = 0.010 mg = 0.010 x 10-3 g

Molar mass of H2 (M) = 2x1.00784 = 2.01568 g/mol

so, mole of H

2

(n) = 5.0x10

-5

mol

R = Gas constant = 0.082057 L-atm/mol-K

Now, using the ideal gas equation, we can find the pressure (P) inside the tube.

Ideal Gas Equation: PV = nRT

Hence, the pressure inside the tube is 2.4x10-5 atm

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Answer:A key idea in physics is pressure, which is measured as the amount of force per unit area acting perpendicular to a surface. The pascal (Pa), or one newton per square metre, is the SI unit for pressure. [1]

P=FA, with

Pressure is P.

A is the area of the applied force, and F is the force that is applied normal (perpendicular) to the surface.

Volume of the tube (V) = 5.0 L

Temperature (T) = 23 °C = (23 + 273.15) K = 296.15 K

Mass of hydrogen gas (m) = 0.010 mg = 0.010 x 10-3 g

Molar mass of H2 (M) = 2x1.00784 = 2.01568 g/mol

so, mole of H

2

(n) = 5.0x10

-5

mol

R = Gas constant = 0.082057 L-atm/mol-K

Now, using the ideal gas equation, we can find the pressure (P) inside the tube.

Ideal Gas Equation: PV = nRT

Hence, the pressure inside the tube is 2.4x10-5 atm

Explanation:

carbon disulfide gas and oxygen gas react to form sulfur dioxide gas and carbon dioxide gas. what volume of sulfur dioxide would be produced by this reaction if of oxygen were consumed?

Answers

Volume of SO2 proced at the end of reaction = 19 mL

Data, carbon disulfide vol. = 9.5 mL

Since they are proportionate, we can use the vol-vol analysis if a reaction takes place in the gaseous phase exactly like the mole-mole analysis.

What is Ideal gas equation?

The macroscopic characteristics of ideal gases are related by the ideal gas law (PV = nRT). A gas is said to be perfect if its particles are both non-repellent and occupy no space (have no volume).

As per Ideal gas equation,

pv = nRT

and, v∝n

Therefore, to solve this question, we need to come with the eqution of the reaction.

Cs + 3O₂ → 2SO₂ + CO₂

9.5 - - - - Initial

0 -  - - 2*9.5   9.5 after

Therefore, The Volume of SO2 proced at the end of reaction = 19 mL

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in the laboratory you dilute 2.29 ml of a concentrated 6.00 m hydrochloric acid solution to a total volume of 100 ml. what is the concentration of the dilute solution?

Answers

The concentration of the diluted solution will be 0.13 M

It asks you to find the concentration, which is the safe to assume that the unit is Molarity (M). Also, the  unit was used in  the problem as well.

Molarity has the  units of moles/L so we have to work on getting to this point.

The problem states that you have the  2.29 mL of a 6.00 M concentration. First, we will need moles. To get the  moles, we use stoichiometry,

2.29 mL = 0.00229 L

0.00229 L x ( 6 moles/ L) = 0.01374 moles

0.00229 L x ( 6 moles/ L) = 0.01374 moles

This is how many moles are present inside the solution.

To find the new concentration, we divide the total number of moles by the new volume in the Liters:

0.01374 moles/0.100L = 0.1374 M

Rounding to two significant figures, we get 0.13 M.

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the lattice energy for naoh is -887 kj/mol and this is the energy given off (a negative number) when this lattice forms. we are interested in the opposite process, when the lattice is disrupted. the lattice energy for naoh is -887 kj/mol. calculate the energy required to separate the ions in 5.00 grams of naoh (mw

Answers

110.9KJ is the energy required to separate the ions in 5.0grams of NAoH. For the lattice energy for naoh is -887 kj/mol and this is the energy given off (a negative number) when this lattice forms.

Lattice energy is a measure of the strength of the ionic bonds in an ionic compound. It provides insight into several properties of ionic solids including their volatility, their solubility, and their hardness. The lattice energy of an ionic solid cannot be measured directly. The term ‘ion’ can be used to refer to atoms or molecules that have non-zero net charges associated with them. Therefore, all ions have either a greater number of protons than electrons in their overall atomic or molecular structure.

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The energy needed to separate the ions in 5.0 grams of NaOH is 110.9 KJ. The energy released when this lattice develops, which is a negative quantity, is called the lattice energy for NaOH, which is -887 kJ/mol.

The strength of the ionic bonds in an ionic compound is gauged by lattice energy. It sheds light on a number of ionic solids' characteristics, such as their solubility, hardness, and volatility. An ionic solid's lattice energy cannot be directly measured. Atoms or molecules having associated net charges greater than zero are referred to as "ions." As a result, the overall atomic or molecular structure of all ions has more protons than electrons.

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referring to question 1, if we observed a weld that had a diameter of 235 that had a strength 1000, what would be its residual?

Answers

If we observed a weld that had a diameter of 235 that had a strength 1000,the residual is -79.

What is diameter?

The line through the Centre of a circle with two extremes on its circumference is referred to as a circle's diameter.

What is residual?

The residue refers to the insoluble (undissolved) contaminants that remain on the filter paper after filtration.

1) if the diameter is 201 then, we would expect the mean strength to be 864.

2) we should not use the least square regression line to calculate this value as value of diameter s¹ is out of given, range of diameter.

3) Δ= 941.6992+8.5988* 235

= 1079.0188

Residual = 1000- 1079.0188

= -79

Therefore, If we observed a weld that had a diameter of 235 that had a strength 1000,the residual is -79.

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A sample of sulfur dioxide gas has a volume of 0. 871 l and a temperature of 315 k, under a constant pressure. What is the new volume if the temperature is increased to 385 k?

Answers

PV = NkT, where P is a gas's absolute pressure, V is the volume it occupies, N is the quantity of atoms and molecules in the gas, and T is its absolute temperature, is the formula for the ideal gas law.

How is volume pressure determined?

These equations are variations of the ideal gas law, PV = nRT, in which P is the gas's pressure, V is its volume, n is the gas's number of moles, T is the gas' kelvin temperature, and R is the ideal (universal) gas constant.

Are pressure and volume a work?

The work produced by the compression or expansion of a fluid is known as pressure-volume work. Pressure-volume work occurs whenever the volume changes while the external pressure stays constant.

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one way to represent this equilibrium is: co2(g) 2 h2o(g)ch3oh(l) 3/2 o2(g) we could also write this reaction three other ways, listed below. the equilibrium constants for all of the reactions are related. write the equilibrium constant for each new reaction in terms of k, the equilibrium constant for the reaction above. 1) 2 co2(g) 4 h2o(g) 2 ch3oh(l) 3 o2(g) k1

Answers

1)  For, CH3OH(l) + 3/2 O2(g) CO2(g) + 2 H2O(g) : equilibrium constant K1 is 1/√K ; 2) For, CH3OH(l) + 3 O2(g) 2 CO2(g) + 4 H2O(g), K2 =1/K and 3) For, CO2(g) + 2 H2O(g) CH3OH(l) + 3/2 O2(g) ; K3 is √K.

What is equilibrium constant?

For a chemical reaction, equilibrium constant is defined as ratio between amount of reactant and the amount of product which is used to determine chemical behavior.

For, A + B ⇄ C + D; Equilibrium constant is K

For, C + D ⇄ A + B; K' is 1/K

For, 2A + 2B ⇄ 2C + 2D; K'' is K²

Therefore, as equilibrium constant of:

2CO2 + 4H2O ⇄ 2CH3OH + 3O2 is K:

1) For, CH3OH + 3/2 O2 ⇄ CO2 + 2H2O

K1 = 1 / K^(1/2) = 1/√K

2) For, 2CH3OH + 3O2 ⇄ 2CO2 + 4H2O

K2 = 1/K

3) For CO2 + 2H2O ⇄ CH3OH + 3/2 O2

K3 = K^(1/2) = √K

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Note: The question given on the portal is incomplete. Here is the complete question.

Question: One way to represent this equilibrium is: 2 CO2(g) + 4 H2O(g)2 CH3OH(l) + 3 O2(g) We could also write this reaction three other ways, listed below. The equilibrium constants for all of the reactions are related. Write the equilibrium constant for each new reaction in terms of K, the equilibrium constant for the reaction above. 1) CH3OH(l) + 3/2 O2(g) CO2(g) + 2 H2O(g) K1 = 2) 2 CH3OH(l) + 3 O2(g) 2 CO2(g) + 4 H2O(g) K2 = 3) CO2(g) + 2 H2O(g) CH3OH(l) + 3/2 O2(g)

a 20.00 ml volume of h2so4 solution is titrated with 0.125 m naoh. the initial volume of naoh in the buret is 0.75 ml and the final volume is 42.35 ml. determine the concentration of the h2so4 solution. a. 0.115 m h2so4 b. 0.150 m h2so4 c. 0.300 m h2so4 d. 0.130 m h2so4 e. 0.260 m h2so4

Answers

The molarity of H2SO4 when a 20.00 ml volume of h2so4 solution is titrated with 0.125 m NaOH. the initial volume of NaOH in the buret is 0.75 ml and the final volume is 42.35 ml is 0.260 M.

The balanced equation is  2NaOH+H2SO4→Na2SO4+2H2O.

The formula to calculate molarity is

c=n/v

n= c×v

Where, n = moles v= volume and c= molarity

So, the moles in NaOH

nNaOH = 0.125 × 0.75/ 1000

             = 9.3 × 10^-3

From the equation we can see that number of moles of H2SO4 must be half that amount so:

nH2SO4 = 9.3 × 10^-3 /2

               =4.65 × 10^-3

c = n/v

[H2SO4] = 4.65 × 10^-3 /20× 10^-3

              = 0.235 mol/L which equivalent to 0.26 M  H2SO4

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Using standard heats of formation, calculate the standard enthalpy change for the following reaction. 2h2o(l)2h2(g) + o2(g).

Answers

The standard enthalpy change for the reaction 2H2O (l) → 2H2 (g) + O2 (g) is -873.6 kJ/mol.

The standard enthalpy change (ΔH°) for a reaction is the enthalpy change when all reactants and products are in their standard states (at 1 atm pressure and a specified temperature, usually 25°C).

The standard enthalpy change for the reaction 2H2O (l) → 2H2 (g) + O2 (g) can be calculated using the standard heats of formation of the reactants and products as follows:

ΔH°rxn = [ΔH°f (H2O, l) x 2] + [ΔH°f (H2, g) x 2] + ΔH°f (O2, g)

ΔH°rxn = [-285.8 kJ/mol x 2] + [-241.8 kJ/mol x 2] + 0 kJ/mol

ΔH°rxn = -873.6 kJ/mol

Therefore, the standard enthalpy change for the reaction 2H2O (l) → 2H2 (g) + O2 (g) is -873.6 kJ/mol.

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A compound is found to contain 36. 48% na, 25. 41% s, and 38. 11% o. Find its empirical formula.

Answers

The empirical formula of the compound is Na2S3O. To determine the empirical formula of a compound, you need to know the mass of each element present in the compound and the percentage of each element by mass.

An empirical formula is a chemical formula that represents the simplest ratio of atoms in a compound. It shows the types and numbers of atoms present in a molecule, but not the actual arrangement or bonding of the atoms.

To find the empirical formula of a compound, we need to determine the simplest whole number ratio of the elements in the compound. To do this, we first need to convert the percentages of each element to masses.

36.48% Na corresponds to 36.48 g of Na in 100 g of the compound.

25.41% S corresponds to 25.41 g of S in 100 g of the compound.

38.11% O corresponds to 38.11 g of O in 100 g of the compound.

Next, we need to convert the masses of each element to moles. To do this, we use the atomic masses of the elements. The atomic mass of Na is 22.99 g/mol, the atomic mass of S is 32.06 g/mol, and the atomic mass of O is 15.99 g/mol.

36.48 g of Na corresponds to 1.585 moles of Na.

25.41 g of S corresponds to 0.792 moles of S.

38.11 g of O corresponds to 2.385 moles of O.

Finally, we need to find the ratio of moles of each element. To do this, we divide each value by the smallest value. In this case, the smallest value is 0.792 moles of S.

1.585 moles of Na / 0.792 moles of S = 1.995

0.792 moles of S / 0.792 moles of S = 1

2.385 moles of O / 0.792 moles of S = 3.005

Thus, the empirical formula of the compound is Na2S3O.

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What pattern do you notice in the number of protons as you move across the periodic table?

Answers

In the modern periodic table, the number of protons increases while going left to right across the period. Because of this, the ionic size of the atoms decreases while moving left to right in the period, as the increased charge on the nucleus pulls the outer electrons with more force

a sample of gas initially at 0.92 atm and a temperature of 23.2 oc is heated to 40.1 oc. the resulting pressure is 1.3 atm which occupies a volume of 500. ml. what is the initial volume of the sample in milliliters?

Answers

From the gas law, PV=nRT we can say that P(pressure), V(volume) and T (temperature) are related to each other. The initial volume of sample is 408 ml

Given that initial volume of the sample = V1

initial pressure of the sample = 0.92atm

initial temperature of the sample = 23.2oC

Final pressure of the sample = 1.3atm

Final  temperature of the sample = 40.1 oC

Final  volume of the sample = 500ml = 0.5L

Using the relation P1V1/T1 = P2V2/T2

V1 = 1.3x0.5x23.2/40.1x0.92 = 15.08/36.892 = 0.408

Hence the initial volume of sample = 408 ml

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How much energy does it take to warm 1.0 kg of ice from −40°c to 0°c? the specific heat of ice is 2090 j/kg°c.

Answers

Total energy required to warm 1 kg of ice is 834.3 KJ. This is calculated using latent heat and specific heat.

We can calculate the amount of heat required to raise the temperature of 1 kg of ice from -40°C to 0 °C from the latent heat of fusion. Latent heat is the energy absorbed or released by a substance during a change in its physical state that occurs without changing its temperature.

Quantity of heat =Mass x latent heat + mass x specific heat x (final - initial temp)

Mass is 1 kg.

Final temp = 0℃

Initial temp = -40℃

Latent heat of fusion for ice = 333.55 kJ/kg

Specific heat of ice 2.090KJ/kg °C

Specific heat is the the quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree. The units of specific heat are usually calories or joules per gram per Celsius degree.

Total heat required = 2*333.55 + 2* 2.090 *(0- (-40))

                                  =834.3 KJ

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If there are 4 H atoms on the reactant side, how many H atoms will be on the product side?

Answers

Answer:-On the reactant side, there are two H atoms and two O atoms; on the product side, there are two H atoms and only one oxygen atom. The equation is not balanced because the number of oxygen atoms on each side is not the same (Figure 7.3. 2). Figure 7.3.

The simplest hydrocarbon contains one carbon atom and four hydrogen atoms. The formula is CH4, and the name is methane.

Steps for Solving for a Reactant in Solution

Step 1: Determine what information is given in the problem and what information you are looking for.

Step 2: Set up unit conversions to find the information you are looking for.

Step 3: Do the calculations for the unit conversions and find the solution.

The equation is fairly simple. The number of atoms of ANY substance in a volume is: # of atoms = N * (density) * volume / (Molecular Weight). N is a constant called Avogadro's number and its equal to 6.022*1023 atoms/mole.                                                                                                                     Find the number of lone pairs on the central atom by subtracting the number of valence electrons on bonded atoms (Step 2) from the total number of valence electrons (Step 1). Divide the number of VEs not in bonds (from Step 3) by 2 to find the number of LPs.

according to the collision theory of chemical reactions: group of answer choices high energy collisions result in few successful reactions as there isn't sufficient time for the products to react. high energy collisions lead to the successful formation of products. low energy collisions do not occur in the gas phase. low energy collisions result in many successful reactions as there is sufficient time for the reactants to form products. all of the above

Answers

Only collisions that are energetic enough and cross the threshold energy level are considered effective collisions, according to the collision theory.

What exactly does the collision theory entail?

Collision theory is a hypothesis that is used to forecast chemical reaction rates, notably for gases. The foundation of the collision theory is the idea that in order for a reaction to take place, the reacting species (atoms or molecules) must come into contact or crash with one another.

What is the equation for the collision theory?

Collision theory postulates. Reaction rates are inversely correlated with the frequency of reactant collisions, or reaction rate.

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How do you calculate gas at STP?

Answers

Volume = amount in mol × 22.4 is used to calculate gas volume at STP.

Ideal gas law states PV = nRT So, the volume of an ideal gas is 22.4 L/mol at STP.

STP is 273 Kelvin and 1 atmosphere (atm), the standard unit for atmospheric pressure.

At STP, 1 mole of gas takes up 22.4 liters. Let’s put those numbers into the ideal gas law.

The molar mass of a gas can be derived from the ideal gas law, PV=nRT , by using the definition of molar mass to replace n , the number of moles.

The question is incomplete, the complete question is

How do you calculate gas volume at STP?

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what is the molality of a solution that is prepared by dissolving 12 g of nacl in 100 g of solution? enter your answer to three significant figures and in units of molality.

Answers

The molarity of the solution is 2.05 mol/kg, it can be expressed in terms of kilograms as well as liters.

Molarity is defined as the number of moles of the solute to the volume of the solution in liters or weight of solution in kilograms.

It is expressed as follows:

M= n/V or M=n/W

Molar mass of NaCl = 58.4 g/mol

Given mass of NaCl=12 g

The weight of the solution=100 g

Molarity can be calculated as follows:

M= 12/58.4*0.1

M=2.05 mol/kg

The molarity of the solution is 2.05 mol/kg.

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The speed of light is about 300,000,000 m/s or 186,000 miles/second. What
parts of the electromagnetic spectrum move at this speed?

Answers

Answer: all of it.

Explanation:

which of the following ions is aromatic? select one: a. only ii and iii b. i, ii and iii c. only i and ii d. only ii and iv e. i, iii, and iv

Answers

The correct answer is Option d

d. only ii and iv

What is Aromatic Ion?

Chemical compounds known as aromatic compounds are those that lack individual alternating double and single bonds in favour of conjugated planar ring systems and delocalized pi-electron clouds.

They are also known as arenes or aromatics. Toluene and benzene make for the greatest examples. Huckel's rule must be followed for aromatics. The only way for creatures to obtain benzene-ring molecules is through plants and microbes. Therefore, plants and microbes create the vast majority of aromatic compounds found in nature, and animals rely either directly or indirectly on plants for the production of numerous aromatic compounds.

Aromatic hydrocarbons are hydrocarbons that have delocalized pi electrons and sigma bonds between their carbon atoms in a ring. Benzene is one illustration. They are referred to as aromatic because of their odour.

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Calculate the molar mass of Na (CI03)

Answers

Molar mass of Na is 23 u

What is molar mass ?

In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance which is the number of moles in that sample, measured in moles.[1] The molar mass is a bulk, not molecular, property of a substance. The molar mass is an average of many instances of the compound, which often vary in mass due to the presence of isotopes. Most commonly, the molar mass is computed from the standard atomic weights and is thus a terrestrial average and a function of the relative abundance of the isotopes of the constituent atoms on Earth. The molar mass is appropriate for converting between the mass of a substance and the amount of a substance for bulk quantities.

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Does anyone know what's the incomplete combustion of C2H6?

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Answer:

The incomplete combustion of C2H6, also known as ethane, produces a mixture of carbon monoxide (CO) and hydrogen (H2) gases. This reaction typically occurs when there is not enough oxygen present to support complete combustion, which would produce carbon dioxide (CO2) and water (H2O) instead.

What is a protons particle charge

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Answer:

A proton is one of three main particles that make up the atom. Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67×10−27 kilograms

Explanation:

Dalton's Atomic Theory explained a lot about matter, chemicals, and chemical reactions. Nevertheless, it was not entirely accurate, because contrary to what Dalton believed, atoms can, in fact, be broken apart into smaller subunits or subatomic particles. We have been talking about the electron in great detail, but there are two other particles of interest to us: protons and neutrons. We already learned that J. J. Thomson discovered a negatively charged particle, called the electron. Rutherford proposed that these electrons orbit a positive nucleus. In subsequent experiments, he found that there is a smaller positively charged particle in the nucleus, called a proton. There is also a third subatomic particle, known as a neutron.

A major component of gasoline is octane. When liquid octane is burned in air it reacts with oxygen gas to produce carbon dioxide gas and water vapor. Calculate the moles of oxygen needed to produce of water. Be sure your answer has a unit symbol, if necessary, and round it to significant digits.

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The moles of oxygen needed to produce water is 0.50 mol O2.

When liquid octane is burned in the air, it undergoes a chemical reaction with oxygen gas. Octane is a hydrocarbon, meaning it contains hydrogen and carbon atoms. During the combustion reaction, the hydrogen atoms in the octane react with oxygen molecules (O2) from the air to form water vapor (H2O).

The carbon atoms in the octane react with oxygen molecules (O2) from the air to form carbon dioxide (CO2). This reaction releases energy in the form of heat and light.

The equation for this reaction is as follows:

C8H18(l) + O2(g) → CO2(g) + H2O(g)

For every 1 mole of octane (C8H18) that is burned, 2 moles of oxygen (O2) are needed to produce 1 mole of water (H2O).

Therefore, if we want to calculate the moles of oxygen needed to produce 1 mole of water, we need to divide 1 mole of water by 2 moles of oxygen, which gives us 0.50 moles of oxygen.

The final answer is 0.50 mol O2, which should be rounded to two significant digits.

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How do you calculate the half-life of an isotope?

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The half-life of an isotope t1/2 = 0.693 × No of atoms/no of decays

A quantity (of substance half-life )'s (symbol t12) is the amount of time needed for it to decrease to half of its original value. The phrase is frequently used in nuclear physics to refer to how long stable atoms last or how quickly unstable atoms decay radioactively. In a broader sense, the phrase is used to describe any exponential decay (or, very rarely, a non-exponential decay). For instance, the biological half-life of medications and other substances in the human body is discussed in the medical sciences. In exponential growth, doubling time is the opposite of half-life. A characteristic unit for the exponential decay equation, half-life is constant during the course of an exponentially decaying quantity's lifetime. The table below illustrates how a quantity decreases in relation to the number.

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a newspaper published an article about a study in which researchers subjected laboratory gloves to stress. among vinyl​ gloves, ​% leaked viruses. among latex​ gloves, ​% leaked viruses. using the accompanying display of the technology​ results, and using a significance​ level, test the claim that vinyl gloves have a greater virus leak rate than latex gloves. let vinyl gloves be population 1.

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The null hypothesis is rejected since the Z-value is higher than the crucial value. The prevalence of vinyl gloves which leak viruses is higher than the prevalence of latex gloves which leak viruses.

How is a virus defined?

A length of nucleotides (either DNA or RNA), encased in a protein coat, makes up a virus, an infectious bacterium. Since viruses are unable to multiply on their own, they must infect host cells in order to utilise those cells' components as building blocks for their own replication.

What makes something a virus?

virus, an infectious agent with a small size and straightforward chemical makeup that can reproduce exclusively in live cells of bacteria, plants, or animals. The word for "poison" or "slimy liquid" in the name is Latin in origin. The first proof of the biological nature of viruses was provided by research done in 1892 either by Russian scientist Dmitry

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