2
Review: Match the gas law to the formula
Dalton's law of Partial Pressure
Combined Gas Law
Gay-Lussac's Law
Charle's Law
Boyle's Law
10 points
au of Partial Pressure states:
PT = P1+ P2+ P3...
P1V1T2 = P2V2T1
P1T2 = P2T1
V1T2 = V2T1
PT = P1+ P2 + P3...
P1V1= P2V2
P1V1= P2V2

Answer:

Chemical symbols are abbreviations that are used in chemistry to shorten names of chemical elements and chemical compounds.

List the peak location in ppm, and the protons responsible for it labeled a-e in the structure is banana oil.

What is ppm ?

Reduction, which involves the exchange of electrons between species, is the process of gaining electrons or reducing an element's oxidation state in a chemical reaction. When the chemical reaction known as reduction occurs, the number of electrons that are bound to a single atom or a group of related atoms rises.

What is protons ?

Positively charged subatomic particles called protons fall into this category. The strong nuclear force is responsible for the protons' interconnection in an atom's nucleus. Subatomic particles without charge include neutrons (they are neutral).

Therefore, list the peak location in ppm, and the protons responsible for it labeled a-e in the structure is banana oil.

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The oxidation reaction: Ni → Ni⁴⁺ + 4e.

The reduction reaction: 2Cl₂ + 4e → 4Cl⁻.

What is Redox Reaction?

Redox or Oxidation-Reduction processes usually involve simultaneous oxidation and reduction reactions. In a chemical reaction, the material that is being reduced is referred to as the reducing agent, while the substance that is being oxidised is the oxidising agent.

The mentioned reaction: Ni + 2Cl₂ → NiCl₄.

It is an oxidation-reduction reaction comes from two half reactions.

The oxidation reaction: in it Ni losses 4 electrons and is oxidized to Ni⁴⁺ according to the reaction:

Ni → Ni⁴⁺ + 4e.

The reduction reaction: every molecule of Cl₂ will gain 2 electrons and is reduced to 2Cl⁻ according to the reaction:

2Cl₂ + 4e → 4Cl⁻.

The summation of the two-half reactions will give the reaction:

Ni + 2Cl₂ → NiCl₄.

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im not too sure but it should probably be B or D. if not sorry.

The final temperature of aluminum is 57.37°C
Q=mcΔT
This means that the amount of energy produced is equal to the mass of the system multiplied by its change of temperature and multiplied by its specific heat
ΔT=(x−27.5) °C
503.38 = 25 × 0.9 × (x - 35)
(x - 35) =  503.3 / 25 × 0.9
x = 57.37°C
What is specific heat constant?
The specific heat capacity c [J/(kg K)] of tissue describes how much energy is required to change the temperature of 1 kg of tissue by 1 K (=1°C). For example, the lower specific heat capacity of fat compared to other soft tissue indicates, that fat requires less energy to obtain a certain temperature increase. If we multiply specific heat capacity by mass density (ρ·c [J/(m3 K)]), we obtain the energy required to raise the temperature of 1 m3 of tissue by 1 K (=1°C)—that is, a quantity equivalent to a volume-specific heat capacity
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b. testing the hypothesis

The Krebs cycle produces molecules necessary for function of the electron transport chain.

What is electron transport chain ?

The oxidative phosphorylation process, also known as oxidative phosphorylation, is a comprehensive system that produces ATP by coupling redox processes through a sequence of four protein complexes known as the electron transport chain. Cellular respiration and photosynthesis both involve it in mitochondria.

What is  Krebs cycle?

The Krebs cycle, also known as the TCA cycle or the citric acid cycle, is a sequence of enzyme-catalyzed processes taking place in the mitochondrial matrix where acetyl-CoA is oxidized to produce carbon dioxide and coenzymes are reduced to produce ATP in the electron transport chain.

Therefore, the Krebs cycle produces molecules necessary for function of the electron transport chain.

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3040mmHg pressure is nearly equal to 4 atm.

Atmospheric pressure (atm) is a unit of measurement equal to the mean atmospheric pressure at sea level at a temperature of 15 degrees Celsius (59 degrees Fahrenheit). Atmospheric pressure is most often approximated by the hydrostatic pressure caused by the weight of the air above the point of measurement. Air pressure decreases with altitude because as altitude increases, the air above has less mass. Since the atmosphere is thin relative to the Earth's radius (especially in the dense atmospheric layers at low altitudes), the Earth's gravitational acceleration as a function of altitude can be approximated as constant and contributes little to this decline. Pressure is measured as force per unit area in SI units Pascal (1 Pascal = 1 Newton per square meter, 1 N/m²). Atmospheric pressure at sea level is 760 cm Hg.

Given,

3040mmHg pressure

1 mmHg = 0.00131579 atm

3040mmHg = 3040 × 0.00131579 atm

3040mmHg = 4.0000016 atm

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The molecular formula of C₆H₇N is  C₁₂H₁₄N₂; C₂HCl is C₆H₃Cl₃; C₅H₁₀NS₂ is C₁₀H₂₀N₂S₄

The molecular formula can be calculated from the empirical formula and molar mass as follows:

first we know that  the number of moles = subscript

So,

C has 6 moles

H has 7 moles

N has 1 mole

then we can Multiply moles by atomic mass to find molecular weight

therefore,

C = 6 × 12 =72

H =7 × 1 = 7

N = 1 × 14 = 14

to get the empirical weight we calculate by adding molecular weight

C+H+N = 72+7+14= 93

we know that molecular formula is (empirical formula )n

so we should find n by Divide molar mass by the empirical weight

186.24 ÷ 93 = 2

so molecular formula of C₆H₇N is (C₆H₇N)2 = C₁₂H₁₄N₂

first we know that  the number of moles = subscript

So,

C has 2 moles

H has 1 moles

Cl has 1 mole

then we can Multiply moles by molar mass to find molecular weight

therefore,

C = 2 × 12 = 24

H = 1 × 1 = 1

Cl = 1 × 35.5 = 35.5

to get the empirical weight we calculate by adding molecular weight

C+H+Cl = 24+1+35.5 = 60.5

we know that molecular formula is (empirical formula )n

so we should find n by Divide molar mass by the empirical weight

181.44 ÷ 60.5 = 3

so molecular formula of C₂HCl is (C₂HCl)3 = C₆H₃Cl₃  

first we know that  the number of moles = subscript

So,

C has 5 moles

H has 10 moles

N has 1 mole

S has 2 moles

then we can Multiply moles by atomic mass to find molecular weight

therefore,

C = 5 × 12 = 60

H = 10 × 1 = 10

N = 1 × 14 = 14

S = 2 × 32 =64

to get the empirical weight we calculate by adding molecular weight

C+H+N +S = 60+10+14 +64 = 148

we know that molecular formula is (empirical formula )n

so we should find n by Divide molar mass by the empirical weight

296.54 ÷ 148 = 2

so molecular formula of C₅H₁₀NS₂ is (C₅H₁₀NS₂)2 = C₁₀H₂₀N₂S₄

Your question is incomplete but most probably your full question was

From the given empirical formula and molar mass, find the molecular formula of each compound. C₆H₇N, 186.24 g/mol C₂HCl, 181.44 g/mol C₅H₁₀NS₂,296.54 g/mol

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The balanced chemical equation in acidic solution is as follows: Cr₂O₇²−(aq) +  3 HNO₂(aq) ⎯→2  Cr₃+(aq) + 3 NO₃−(aq) + 4 H₂O(l).

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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The reaction is:  2NO2(g) + F2 (g) =2NO2F (g)

Let us consider the order of the reaction i.e., a and b with respect to NO2 and F2.

So, the rate Law is: Rate = K [NO2] a [F2] b                                       ------- (i)

Where, K is the rate law constant

Now, for experiment no. 1

Rate = 0.026 = K (0.100) a (0.100) b                                       ----------(ii)

for experiment no. 2

Rate = 0.051 = K (0.200) a (0.100) b                                       ----------(iii)

for experiment no. 3

Rate = 0.103 = K (0.200) a (0.200) b                                       ----------(iv)

for experiment no. 4

Rate = 0.411 = K (0.400) a (0.400) b                                       ----------(v)

Now, dividing equation no. – (ii) by (i), we get

0.026/0.051 = {K (0.100) a (0.100)b} / K (0.200) a (0.100) b

1/2 = (1/2) a

a = 1

Now, dividing equation no. – (iii) by (ii), we get

0.051/0.103 = {K (0.200) a (0.100) b} / K (0.200) a (0.200) b

1/2 = (1/2) b

b = 1

Hence, the rate law expression is –

Rate = K [NO2]1 [F2]1

Rate = K [NO2] [F2]

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Answer:

E. all except

Explanation:

All except Water gas

The substances are formed from the remains of plants and animals are fossil fuels. Therefore, option E is correct.

An extracted and burned fossil fuel is a hydrocarbon-containing substance that naturally originated in the Earth's crust from the remains of extinct plants and animals. Coal, oil, and natural gas are the three primary fossil fuels.

Animal and plant remains are used to create fossil fuels. Coal, petroleum (oil), and natural gas are some of them. They are energy sources made of accumulated fossils of living things that were buried millions of years ago.

Microbes that break down the corpses of plants and animals, such as bacteria and fungi, are referred to as saprotrophs or decomposers. Saprotrophs separate these residues into organic and inorganic substances as they decompose them.

Thus, option E is correct.

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Answer:

The formula mass of iron(II) chloride is 162.21 g/mol.

Chemical equation is a representation of a reaction that brings in chemical changeschanges. It is represented in word form and in symbols.

What is a chemical equation?

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According to the given statement the rate law for this reaction. A+2B→AB2 is =k[A][B]

A chemical reaction is a process that permits one group of chemical components to change chemically into another.Chemical reactions, which can frequently be defined by a chemical equation, traditionally include changes that only affect the locations of electron in the formation and dissolution of chemical bonds among atoms, with no changes to the nucleus (no change to the components contained).

Combination or synthesis, decomposition, single displacement, double displacement, and combustion are the five different types of generic chemical reactions.

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Answer:

69.23g

Explanation:

Find out how many moles is in 9.89g of H2.

number of moles = mass(g) / molar mass

1 is the molar mass of hydrogen (to the nearest whole)

relative molecular mass of H2: 2*1 = 2

number of moles of H2 = 9.89/2 = 4.945

1 mol of H2 is produced from 2 mol of Li

so

4.945 mol of H2 produces 9.89 mol of Li

mass(g) = number of moles * molar mass

7 is the molar mass of Lithium (to the nearest whole)

mass = 9.89 * 7 = 69.23

69.23 grams of Li are needed to produce 9.89 of H2

At STP, the volume of one mole of any gas is 22.4 L. As per the given reaction, one mole or 22.4 L of Cl₂ gas gives one mole or 22.4 L of I₂ gas. Thus, 21 L of  Cl₂ gives 21 L of I₂ gas.

The volume occupied by one mole of a substance is called its molar volume. At standard temperature and pressure condition (STP), one mole of every substance contains 22.4 L .

One mole of Cl₂ gas at STP contains 22.4 L similarly one mole of I₂ contains 22.4 L. As per the reaction, one mole of Cl₂ give one mole of l₂. Thus, both are having equal volumes in this reaction.

Therefore, 21 L Cl₂ reacts to give 21 L l₂ at STP .

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Answer: 21 L i2 at STP

Explanation:

One mole of Cl₂ gas at STP contains 22.4 L similarly one mole of I₂ contains 22.4 L. As per the reaction, one mole of Cl₂ give one mole of l₂. Thus, both are having equal volumes in this reaction.

Therefore, 21 L Cl₂ reacts to give 21 L l₂ at STP .

Metal atoms have low ionization energy, and nonmetal atoms have high electronegativity.

According to the periodic table the elements which are most active are Li and Na.

Ionic bonding occurs when valence electrons transfer completely between atoms. The metal atoms having low ionization energy, loses electrons and becomes positively charged.

The noble gasses (Group 18) are considered inactive since they already have a stable octet of electrons in their outer shell.

An ionic bond is produced between metallic and non-metallic atoms, where electrons are completely transferred from one atom to another. During this process, one atom loses electrons and another one gains them, forming ions.

Therefore, Metal atoms have low ionization energy, and nonmetal atoms have high electronegativity.

According to the periodic table the elements which are most active are Li and Na.

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Answer: true

Explanation:

Boyle's Law states both that as volume increases pressure decreases and that as pressure increases volume decreases. Explanation: Boyle's Law states that pressure and volume are inversely proportional, but also assumes that the material is a confined gas (so no amount of gas increases or decreases) and the temperature remains steady.

Answer:

White dwarf.

Explanation:

its the most furthest.

Frontier ethics explains that nature has an unlimited supply of resources. So, humans can use natural materials limitlessly. These ethics are sometimes considered as human interference in the matter of natural resources and the environment.  Harmony with nature is not possible if human will follow frontier ethics.  

Human manages and controls the natural environment. Human consumption of resources in unlimited ways was also discussed in frontier ethics. Natural laws are not followed in frontier ethics. According to frontier ethics, human development and economic growth are the most important issues.

In short, human attitudes and behavior toward nature are not so good. Here, humans are not much concerned about environmental problems. They only value their needs and desires.  

Therefore, the correct answer is (A).

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Higher the value of the principle quantum number to which electron is jumping, longer will be the wavelength. So, n = 6, p = 8 transition produces longest wavelength.

What is Wavelength?

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles.The wavelength is most frequently described in nanometers (nm), which are units of 10-9 m, or angstroms (), which are units of 10-10 m, for infrared (IR), visible light (UV), and gamma radiation ().

Frequency, which is defined as the quantity of wave cycles per second, and wavelength have an inverse relationship.

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The substances Pyruvate and Oxaloacetat, would be glycogenic in mammals, if produced from the catabolism of an amino acid. Correct answer: numbers 2 and 4.

Pyruvate and oxaloacetate are the end products of the breakdown of certain amino acids (glucogenic amino acids) in the liver. These products can be converted into glucose, through a process known as gluconeogenesis. This process allows the body to maintain blood glucose levels even when dietary sources of glucose are not available.

Catabolism of an amino acid refers to the process of breaking down amino acid molecules into simpler molecules, such as:

This process releases energy that the body can use for other metabolic functions.

Which of the following substances, if produced from the catabolism of an amino acid, would be glucogenic (in mammals)?

1. Acetoacetate

2. Pyruvate

3. Acetyl-CoA

4. Oxaloacetate

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According to Newton's second law, force equals mass multiplied by acceleration. As a result, in a car accident, the force exerted by the vehicle and its occupants decreases as the time required for the vehicle to stop increases.

We clearly observed in the Exploration that when two cars collide, each feels a force from the other.

According to Newton's third law, when one object exerts a force on another, the second object feels an equal and opposite force exerted by the first object. This is very clear in the two-object collision.

The force with which your body is struck in a collision is referred to as crash force. Crash force is equal to your body weight multiplied by the vehicle's speed.

Newton's second law states that force equals mass multiplied by acceleration. As a result, the force exerted by the vehicle and its occupants in a car accident decreases as the time required for the vehicle to stop increases.

Thus, this way it hits the car.

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Answer: 3.0655207907157433

Explanation:

H2(g)+2ICl(g) → 2HCl(g)+I2(g)H2(g)+2ICl(g)→2HCl(g)+I2(g)

rate=k[HI][ICl]

What is Rate of Reaction?

The pace at which the products are created from the reactants in a chemical reaction is referred to as the rate of reaction. It provides some understanding of how quickly a response might occur. For instance, the combustion of cellulose in fire has a very rapid response rate and is finished in a fraction of a second.

The pace at which reactants change into products is known as the rate of reaction or reaction rate. It goes without saying that the pace at which chemical reactions take place varies greatly. While certain chemical reactions occur almost instantly, others often take time to achieve their ultimate equilibrium.

Rate of reaction=Amount of reactant used/Time taken for the                           consumption of the reactant

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In the given Galvanic cell, the electrons are flowing from left to right. The Zinc is oxidized into Zn²⁺ ions.

A galvanic cell can be described as an electrochemical cell in which electricity is produced from spontaneous Oxidation-Reduction reactions. Galvanic cells exhibit spontaneous redox reactions but the energy generated from the said reaction.

A common apparatus of the galvanic cell consists of two different metals or electrodes such as Zinc and copper electrodes, each immersed in different beakers containing their respective ion solution. Therefore, the Zinc electrode is placed in ZnSO₄ solution and the copper electrode is placed in CuSO₄ solution.

On the left end, the zinc metal is oxidized into Zn²⁺ ions, and the electrons from the Zinc electrode travel to the copper electrode (right end). The cooper Cu²⁺ ions from the CuSO₄ solution accepts those electrons and deposit as copper metal on the copper electrode.

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The Boiling point is 345.36 K at 1.332 atm.

What is boiling point?

Organic compounds' boiling points will reveal important information about their structural and physical characteristics. The boiling point of a substance aids in its identification and characterization. A liquid's boiling point is higher under higher atmospheric pressure than it is under lower atmospheric pressure.

What is vaporization  ?

The process of converting a substance from its liquid or solid state into its gaseous (vapour) state is known as vaporization. Boiling is the process of vaporizing a liquid when the environment permits the development of vapor bubbles inside the liquid.

Relationship is between vapor pressure and boiling point and ΔHvap is given by clauses clampy ton.

ln ( p₂/p₁)-  ΔHvap/ R ( 1/ l₂- 1/ T₁)

Now given,

normal boiling point means pressure is 1 atm

P₁= 1atm, T₁= 328k

p₂= 1,32 atm, T₂= ?

ΔHvap= 36.6KJ/ Mol = 36600J/Mol

ln= (1.32/1) = - 36600J/mol/ 8.314 J/Mol.K  (1/T₂- 1/338K)

= 1/T₂- 1/338K = - 6.30664*10⁻⁵ K⁻¹

= 1/T₂ = 2.8955*10⁻³ K⁻¹

T₂= 345.36 K

Therefore, Boiling point is 345.36 K at 1.332 atm.

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The relationship between electron geometry, molecular geometry, orbital hybridization, and molecular polarity is:

These 4 aspects have a significant role in the characteristic of a molecule:

Orbital hybridization is the key to the other aspects. By determining an atom's s and p hybridization, we can analyze the molecular geometry. For example, an sp³ atom has tetrahedral geometry. Molecular geometry depends on the electron arrangement in atoms and molecules. The electron arrangement defines the electron clouds and affects the molecular polarity as well.

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