Answers
Explanation and Answer:
formula of Chlorite ion = ClO₂⁻
formula of Chlorate ion = ClO₃⁻
The chlorite ion contains two atoms of O, and the chlorate ion contains three atoms of O.
They are both cations and their charges are -1 but, the main difference between them is that the oxidation state of Cl in the chlorite ion is 3+ and the oxidation state of Cl in the chlorate ion is +5.
formula of sulfite ion = SO₃²⁻
formula of sulfate ion = SO₄²⁻
Sulfite and sulfate are both cations with charge -2. The oxidation state of S in the sulfite ion is +4 and the oxidation state of S in the sulfate ion is +6.
How are the chlorate and the chlorite ions similar to the sulfate and sulfite ions?
When naming a polyatomic ion the sufix is related to the oxidation state of the main element.
common positive oxidation states of Cl = +1 +3 +5 +7
common positive oxidation states of S = +4 +6
When the element has two main positive oxidation states (like S) , the sufix for the lower oxidation state is -ite (sulfite = +4) and the sufix for the greater oxidation that is usually more stable is -ate (sulfate = +6).
When the element has four main positive oxidation states (like Cl), the two in the middle are named in a similar way to the previous one. The lower oxidation state must have -ite as a sufix (chlorite = +3) and the sufix for the greater is -ate (chlorate = +5).
Ions are the charged chemical species. Chlorate and chloride are two different ions of chlorine which are represented as ClO₃⁻ and ClO₂⁻, respectively. These are similar to sulfate and sulfite ions in the difference in the charge present on them.
What are ions?
An ion is an atom or a molecule which carry a net electrical charge. The electric charge is a result of the valency of the atom.
Chlorite and chlorate are the two charged ions of chlorine and can be represented as:
Formula of Chlorite ion = ClO₂⁻
Formula of Chlorate ion = ClO₃⁻
The chlorite ion contains two atoms of O, whereas the chlorate ion contains three atoms of O. Both of these ions are anions as they carry a net negative charge with a charge of -1. The main difference between these two is the oxidation state of Cl in the chlorite ion which is +3 and the oxidation state of Cl in the chlorate ion is +5.
The sulfate and sulfite ions are the two charges species of sulfur which can be represented by:
formula of sulfite ion = SO₃²⁻
formula of sulfate ion = SO₄²⁻
Sulfite and sulfate are anions with a charge of -2. The oxidation state of sulfur in the sulfite ion is +4 and the oxidation state of sulfur in the sulfate ion is +6.
These are similar to chlorate and chloride ions in oxidation states which are: Oxidation state of Cl = +1, +3, +5, and +7 and Oxidation states of S = +4 and +6
Learn more about Ions here:
https://brainly.com/question/14982375
#SPJ2
Related Questions
Density is the ratio of a substance's _______ to its volume.Question options:A) weightB) forceC) thicknessD) mass
Answers
Answer
D) mass
Explanation
The density of a substance is a ratio of its mass to volume.
Therefore, density is the ratio of a substance's mass to its volume.
The correct answer is option D) mass
REACTION; C5H12 + 8O2 5CO2 + 6H2OWhen 2.50 moles of C5H12 react with 12.0 moles of O2, what is the maximum amount of H2O that can be produced in moles?
Answers
The first thing we do is to verify that the equation is balanced. We are going to count the atoms of each element on each side of the reaction.
Reagents side:
Carbon (C) = 5 atoms.
Hydrogen (H) = 12 atoms.
Oxygen (O) = 16 atoms.
Products side:
Carbon (C) = 5 atoms.
Hydrogen (H) = 12 atoms.
Oxygen (O) =16 atoms.
We have the same number of atoms on both sides of the reaction. So, the reaction is balanced. Now, we must determine which is the limiting reagent.
For each mole of C5H12 that reacts, 8 moles of oxygen are needed and 5 moles of CO2 and 6 moles of H2O are produced.
So, if we have 2.5 moles of C5H12 we will need:
Moles of O2 = 2.5 moles of C5H12 x 8 = 20 moles of oxygen.
We only have 12 moles of oxygen, we don't have enough moles to react to 2.5 moles of C5H12. So oxygen is the limiting reagent. So we will calculate based on the number of moles of oxygen.
So, for every 8 moles of oxygen 1 mole of C5H12 reacts, if we have 12 moles of the oxygen we divide this amount by 8 to know how many moles of C5H12 react.
Moles of C5H12 that reacts = 12 moles of oxygen / 8 = 1.5 moles of C5H12
For each mole of C5H12 6 moles of H2O are produced. So the number of moles produced will be:
Moles of H2O produced= 1.5 moles of C5H12 x 6 = 9 moles of H2O
So, the maximum amount of H2O that can be produced is 9 moles.
If you start with 512 grams of aluminum and 1147 grams of copper chloride to make aluminum chloride and copper, what is the limiting reagent?2Al + 3CuCl -> 2AlCl3 + 3CuA. AlCl3B. CuClC. AlD. Cu
Answers
Chemistry => Stoichiometry => Limiting reactant
The limiting reactant corresponds to the reactant that produces the least amount of moles of products, that is, it will be the reactant that theoretically reacts completely.
To find the limiting reactant we will first calculate the moles of each reactant. For that, we divide the given mass by the respective molar mass of the compounds.
Molar Mass Al = 26.98g/mol
Molar Mass CuCl = 98.999g/mol
Moles Aluminum
[tex]molAl=512g\times\frac{1molAl}{26.98gAl}=19.0molAl[/tex]Moles Copper Chloride
[tex]molCuCl=1147gCuCl\times\frac{1molCuCl}{98.999gCuCl}=11.6molCuCl[/tex]Now, to find the limiting reactant we divide the moles found in each compound between the stoichiometry coefficient from the balanced equation.
So, we will have:
[tex]\begin{gathered} Al\rightarrow\frac{19.0}{2}=9.50 \\ \\ CuCl\rightarrow\frac{11.6}{3}=3.87 \end{gathered}[/tex]The compound with the smallest quotient will be the limiting reactant.
So, the limiting reactant will be CuCl
Answer: B. CuCl
Each part has its own answer & part 2/2 is a continuation of the first part 1/2 :)
Answers
Answer:
Explanations:
1) According to the first question, we are to find the molar mass of Na₂SO₄.
Find the molar mass of each element present on the compound
• Molar mass of Sodium (Na) = 23g/mol
,• Molar mass of sulfur (S) = 32g/mol
,• Molar mass of Oxygen (O) = 16g/mol
Get the molar mass of Na₂SO₄.
[tex]\begin{gathered} \text{Molar mass of }Na_{2}SO_{4}=2(23)+32+4(16) \\ \text{Molar mass of }Na_2SO_4=46+32+64 \\ \text{Molar mass of }Na_{2}SO_{4}=142g\text{/mol} \end{gathered}[/tex]Therefore the molar mass of Na₂SO₄ is 142g/mol
2) The formula for calculating the number of moles of the compound Na₂SO₄ is expressed as:
[tex]n=\text{Molar conc.}\times\text{volume}[/tex]Given the following parameters:
• Molar concentration = 0.202M = 0.202mol/L
,• Volume = 784mL= 0.784L
Substitute the given parameters into the formula:
[tex]\begin{gathered} n=0.202\frac{mol}{\cancel{L}}\times0.784\cancel{L} \\ n=0.1584\text{moles} \end{gathered}[/tex]Hence the number of Na₂SO₄ needed is 0.1584moles.
Find the total molarity of the acid? MaVa = MbVb Ma= what you are looking forVa= 100mLMb = 1MVb = 25 mL
Answers
In this question, we have to find the molar concentration of the acid, and the question already provides us with the formula and each required data:
MaVa = MbVb
We have:
Ma = ?
Va = 100 mL
Mb = 1.0 M
Vb = 25 mL
Now we add these values into the formula:
Ma * 100 = 1 * 25
100Ma = 25
Ma = 25/100
Ma = 0.25 M
2 H₂O + electricity → 2 H₂ + O₂15. In which type of cell would this reaction most likely occur?(1) a chemical cell, because it is exothermic(2) an electrolytic cell, because it is exothermic(3) a chemical cell, because it is endothermic(4) an electrolytic cell, because it is endothermic
Answers
Answer:
(4) an electrolytic cell, because it is endothermic.
Explanation:
You can see that we're using electricity to carry out the reaction, so this reaction is occuring in an electrolytic cell.
Remember that electricity is a form of energy. In an exothermic process, the energy is released but in an endothermic process, the energy is being absorb, and the process would required energy.
As you can note, this reaction requires electricity, it required energy, so this would be an endothermic process.
The answer would be (4) an electrolytic cell, because it is endothermic.
What is the mass percent concentration of a solution containing 30.0 g NaCl and 170.0 mL of water? Assume a density of 1.00 g/mL for water.
Answers
The expression used to calculate the mass percent concentration is: % (m/m) = (mass of solute) / (mass of solution (solute + solvent)) x 100.
First let's transform mL into grams of water:
1 g of water ---- 1 mL of water
x g of water ---- 170 mL of water
x = 170 g of water
Now let's calculate the mass of solution:
mass of solute = 30 g of NaCl
mass of solvent = 170 g of water
solute + solvent = 30 + 170 = 200 g
% (m/m) = (mass of solute) / (mass of solution (solute + solvent)) x 100.
% (m/m) = (30g/200g) x 100.
% (m/m) = 15.0%
Answer: 15.0%
In this set of chemical reactions, which is a singlereplacement reaction?Pb(NO3)2(aq) + 2NaCl(aq) → PbCl2(s) + 2NaNO3(aq)CuSO4(aq) + BaCl2(aq) → BaSO4(s) + CuCl2(aq)K2504(aq) + BaCl2(aq) → BaSO4(s) + 2Cl(aq)AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)
Answers
ANSWER
[tex]\begin{gathered} \text{ Zn}_{(s)}+\text{ H}_2SO_{4(aq)}\rightarrow\text{ ZnSO}_{4(aq)}\text{ + H}_{2(g)} \\ \text{ option D} \end{gathered}[/tex]EXPLANATION:
A single replacement reaction is also called a single displacement reaction.
A single replacement reaction is a type of reaction where one element is substituted for another element in a compound during a chemical reaction.
Below reaction is an example of a single replacement reaction
[tex]\text{ A + BC }\rightarrow\text{ B + AC}[/tex]From the given options, you will see that the reaction between Zn and H2SO4 is a single replacement reaction
Zn will displace H2 because it is more reactive than hydrogen
Hence, the correct option is D
Now, provide the following information: Molecular formula
Answers
The molecular
Step-by-step explanation:
Molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts. The numeric subscripts only tell us the number of atoms of the constituent elements
[tex]\begin{gathered} _{}_{}_{}_{} \\ \text{ Molecular formula of water} \\ H_2O\text{ } \\ \text{The constistuent elements are hydrogen and oxygen} \\ \text{Water has 2 atoms of hydrogen and 1 atom of oxygen} \end{gathered}[/tex]Molecular mass of water can be calculated as follows
H2O
The molar mass of hydrogen is 1
The molar mass of oxygen is 16
Since water has two atoms of hydrogen and 1 atom of oxygen
Molecular mass of water = 2(1) + 1(16)
Molecular mass of water = 2 + 16
Molecular mass of water = 18g/mol
Hence, the molecular mass of water is 18g/mol
reaction of alkanes with potassium permanganate solution
Answers
Alkanes are paraffins and that means they don't react a lot. SO when potassium permanganate solution is introduced to alkanes, it will not react with KMnO4 & the pink color of the solution shall persist as there is no change in the reaction.
Alkanes do not react with potassium permanganate solution.
Alkanes are the least reactive type of compound. Alkanes are saturated hydrocarbons that are slightly stable due to the presence of only single bonds. Double bonds are absent in them. Two important reactions they undergo are combustion, which is the reaction with oxygen and halogenation, and which is the reaction with halogens. Potassium permanganate is a potent oxidizing agent that dissolves in water to give the purple solution.
Alkanes do not react with potassium permanganate solution because potassium permanganate is an oxidizer and alkanes have no functional groups such as double bonds that can be further oxidized. Thus, alkanes do not react with potassium permanganate.
To learn more about alkanes and potassium permanganate,
https://brainly.com/question/15540819
What is the value of the equilibrium constant / Kc?
Answers
answer and explanation
in order to determine the equilibrium constant we have to use the ICE method
the initial concentration of PCl5 is given as 0.300M and at this stage, the concentration of PCl3 and Cl2 are zero
the equilibrium constant is 0.5
When the reactants have less enthalpy than the products, then __________.A. the reaction will be completeB. heat energy is absorbedC. heat energy is given outD. None of these
Answers
Chemistry => Thermochemistry => Exothermic and Endothermic Processes
The type of chemical reaction will depend on whether the reaction absorbs or releases energy.
When the reaction releases energy, it is because there is an excess of it and it is called exothermic. This excess occurs because the energy of the products is lower than that of the reactants.
Now, when the products have more energy than the reactants, it means that the reaction needs energy since there is a lack of energy. We call these types of reactions endothermic.
Now, according to the establishment, if the reactants have less energy (or enthalpy), it means that heat must be adsorbed in order to obtain the products that have higher energy (or enthalpy).
Therefore, the answer will be:
B. heat energy is absorbed
What is the pH of 5.43 M solution of potassium trifluoroacetate KC2F302) at 25 C?
Answers
Potassium trifluoroacetate is the salt of a weak acid (trifluoroacetic acid) and a strong base (potassium hydroxide). In water it will dissociate into its ions.
KC₂F₃O₂ ------> K⁺ + C₂F₃O₂⁻
The trifluoroacetate ion is the conjugate base of a weak acid:
C₂F₃O₂⁻ + H₂O <-----> C₂F₃O₂H + OH⁻
The dissociation constant of this conjugate base will be:
Kb = [C₂F₃O₂H] * [OH⁻]/[C₂F₃O₂⁻]
I searched for the value of the Ka for the trifluoroacetatic acid. With this value we can find the Kb for the trifluoroacetate.
Ka = 1
Ka * Kb = 1 * 10^(-14)
Kb = 1 * 10^(-14)/1
Kb = 1 * 10^(-14)
So first we will have to find the concentration of OH⁻ and then we will be able to find the concentration of H+ and finally the pH.
We have to use the ICE table.
C₂F₃O₂⁻ + H₂O <-----> C₂F₃O₂H + OH⁻
I 5.43 0 0
C -x +x +x
E 5.43 - x x x
The initial concentration of the trifluoroacetate ion is 5.43, then some moles of it will convert into moles of C₂F₃O₂H and OH⁻. And finally we found the equilibrium concentrations that we can replace of the expression of the Kb.
Kb = [C₂F₃O₂H] * [OH⁻]/[C₂F₃O₂⁻]
Kb = x * x /(5.43 - x)
Kb = x²/(5.43 - x)
We can replace the Kb for the value that we found and solve this quadratic equation for x.
1 * 10^(-14) = x²/(5.43 - x)
1 * 10^(-14) * (5.43 - x) = x²
x² + 1 * 10^(-14) x - 5.43 * 10^(-14) = 0
This quadratic equation has two roots. We will use the positive one since it is a concentration.
x₁ = 2.33 * 10^(-7) x₂ = - 2.33 * 10^(-7)
The concentration of OH- in the equilibrium is x. We can determine the pOH.
[OH-]eq = x₁
[OH-]eq = 2.33 * 10^(-7)
pOH = - log [OH-]
pOH = - log (2.33 * 10^(-7))
pOH = 6.63
Finally we can find the pH using that value:
pH + pOH = 14
pH = 14 - pOH = 14 - 6.63
pH = 7.37
Answer: the pH of a 5.43 M solution of potassium trifluoroacetate is 7.37 supposing that ka of trifluoroacetic acid is 1.
When the temperature of a gas is increased and the pressure is held constant what happens to the density of the gas?
Answers
Answer:
The density of the gas will increase.
Explanation:
From the Charles's law of Ideal gases, we know that, if the pressure is constant, the behavior of the gas will be represented like:
[tex]\frac{V_1}{T_1}=\frac{V_2}{T_2}[/tex]So, if the temperature of a gas is increased, the volume of the gas will decrease, because temperature and volume (in the charles's law, that is with constant pressure) are inversely proportional.
Now, to analyze what happens with the density, we can see the density formula:
[tex]\text{ Density = }\frac{\text{ Mass}}{\text{ Volume}}[/tex]So, if the volume of the gas decrease, the density of the gas will increase, because in the density formula, volume and density are inversely proportional.
Finally, if the temperature of a gas is increased and the pressure is held constant, the density of the gas will increase.
How many grams of hydrogen are in 25 g of (NH4)2SO4?
Answers
ANSWER
The mass of hydrogen in 25g of (NH4)2S04 is 1.5152 grams
EXPLANATION
Given information
[tex]\text{ The mass of \lparen NH}_4)_2SO_4\text{ is 25g}[/tex]To find the grams of hydrogen, please follow the steps below
Step 1: Find the molar mass of (NH4)2SO4
Recall, that
The unit mass of nitrogen is 14u
The unit mass of hydrogen is 1u
The unit mass of sulfur is 32u
The unit mass of oxygen is 16u
[tex]\begin{gathered} \text{ \lparen NH}_4)_2SO_4\text{ = \lbrack\lparen14 + \lparen1}\times4)]\times2\text{ + \lparen32\rparen + \lparen4 }\times16) \\ \text{ \lparen NH}_4)_2SO_4\text{ = \lparen14 + 4\rparen}\times2\text{ + 32 + 64} \\ \text{ \lparen NH}_4)_2SO_4\text{ = 18}\times2\text{ + 32 +64} \\ (NH_4)_2SO_4\text{ = 36 +32 +64} \\ \text{ \lparen NH}_4)_2SO_4\text{ = 132 g/mol} \end{gathered}[/tex]From the calculations, the molar mass of (NH4)2SO4 is 132 g/mol
Step 2: Find the number of moles of the compound
[tex]\begin{gathered} \text{ Mole = }\frac{\text{ mass}}{\text{ molar mass}} \\ \end{gathered}[/tex]Mass = 25g
Molar mass = 132 g/mol
Substitute the given data into the formula above
[tex]\begin{gathered} \text{ Mole = }\frac{25}{132} \\ \text{ Mole = 0.1894 mol} \end{gathered}[/tex]The number of moles of (NH4)2SO4 is 0.1894 mol
Step 3: Find the moles of hydrogen in the compound
There are 8 hydrogen atoms in (NH4)2SO4
Hence, we can find the number of moles of hydrogen below
[tex]\begin{gathered} \text{ Mole of hydrogen = 8 }\times\text{ 0.1894} \\ \text{ Mole of hydrogen = 1.5152 moles} \end{gathered}[/tex]Step 4: Find the mass of hydrogen using the below formula
[tex]\text{ Mole = }\frac{mass}{\text{ molar mass}}[/tex]Recall, that the molar mass of hydrogen is 1.000 g/mol
[tex]\begin{gathered} \text{ 1.5152 = }\frac{\text{ mass}}{\text{ 1}} \\ \text{ cross multiply} \\ \text{ mass = 1.5152}\times\text{ 1} \\ \text{ Mass = 1.5152 grams} \end{gathered}[/tex]Hence, the mass of hydrogen in 25g of (NH4)2S04 is 1.5152 grams
The correctly drawn Lewis structure for CH2CH2 will have ____1. 4 single bonds to carbon2. 2 single bonds to carbon and 1 double bond to a carbon3. 2 single bonds to carbon and 1 singic bond to hydrogen4. 3 single bonds to carbon and 1 single bonds to a carbon5. 2 single bonds to carbon and 2 double bonds to carbon
Answers
Answer:
[tex]2\text{ : 2 single bonds to carbon and 1 double bond to a carbon}[/tex]Explanation:
Here, we want to describe the correct Lewis diagram for the molecule
For the molecule, we will have a double bond between the two central carbon atoms. Then, we will have 2 single bonds from each carbon atom to the hydrogen atoms.
Thus, the correct answer choice here is 2 single bonds to carbon and 1 double bond to a carbon
The correctly drawn Lewis structure for CH₂CH₂ will have 2 single bonds to carbon and one double bond to carbon. Therefore, the correct option is option 2.
A Lewis structure is a representation of a molecule or ion that shows the arrangement of atoms, the bonding between them, and the distribution of valence electrons. It is a simplified way to visualize the electronic structure of a compound.
In a Lewis structure, atoms are represented by their chemical symbols, and valence electrons are represented as dots or lines. Dots are placed around the atomic symbols to indicate non-bonding electrons, and lines represent covalent bonds between atoms. Lewis structures help in understanding the bonding and molecular geometry of a compound, as well as predicting its chemical behavior.
Learn more about Lewis structure, here:
https://brainly.com/question/32988499
#SPJ6
What is the percent of H inNH3?(H = 1.008 amu, N = 14.01 amu)=
Answers
In order to find the percentage of an element within a compound, we need to have the mass for this element and also the mass of the whole compound, and the masses are:
H = 1.008 g/mol or amu
and we have 3 H in the compound, therefore = 3.024 g/mol or amu
NH3 = 17.031 g/mol
Now we know that 17.031 is the total mass, so we will call it 100%
17.031 g/mol = 100%
3.024 g/mol = x %
x = 17.75% of H in NH3
What volume of water should be used to make a saturated solution with 150 grams of solute at 30 degrees?
Answers
According to the given graph, at 30 degrees, the solution is saturated with 200g of solute per 100mL of water.
It means that if we have 150 grams of solute:
[tex]150g\cdot\frac{100mL}{200g}=75mL[/tex]75mL should be used to have a saturated solution.
One measure of solubility is concentration in grams per liter. What is the concentration of copper(II) ions, in grams per liter, measured in a 0.200 L sample of water in which 0.00026 g of copper(II) ions are present?
Answers
One measure of solubility is concentration in grams per liter concentration of copper(II) ions, in grams per liter, measured in a 0.200 L sample of water in which 0.00026 g of copper(II) ions are present is 0.0013 g/L means 1.3×10⁻³g/L
Concentration is defined as mass per unit volume
Here given data is
Volume = 0.200 L
Mass = 0.00026 g
We have to calculate concentration = ?
Concentration = mass/volume
Concentration = 0.00026 g/0.200 L
Concentration = 0.0013g/L = 1.3×10⁻³g/L
1.3×10⁻³g/L concentration of copper(II) ions, in grams per liter, measured in a 0.200 L sample of water in which 0.00026 g of copper(II) ions are present
Know more about concentration
https://brainly.com/question/28196125
#SPJ1
number of moles in 16.23 liters of hydrogen sulfide h2s gas at stp?
Answers
The number of moles in 16.23 liters of hydrogen sulfide h2s gas at STP is 0.7245 moles.
Standard temperature and pressure (STP) refer back to the nominal situations within the surroundings at sea stage. these conditions are zero degrees Celsius and 1 ecosystem (atm) of pressure.
A mole is a completely important unit of size that chemists use. A mole of something manner you have got of that aspect, like how having a dozen eggs approach you to have twelve eggs. Chemists should degree the use of moles for very small such things as atoms, molecules, or different debris.
The mole, symbol mol, is the unit of quantity of substance inside the worldwide machine of gadgets. the amount quantity of the substance is a degree of what number of elementary entities of a given substance is in an item or pattern. The mole is defined as containing exactly 6.02214076×10²³ simple entities
calculation:-
mole at STP = volume in liters/22.4
= 16.23 liters /22.4
= 0.7245 moles.
Learn more about moles here:-https://brainly.com/question/15356425
#SPJ9
I just want to know if I did this correctly
Answers
First, let's count down the number of carbon. There are six carbon, so the name have "hex"
There are no double or triple bonds, sou hexane.
The compound is a cyclo, so cyclohexane
There are 2 chlorines, one in position 1 and other in position 2 of the cyclo.
The right name is:
1,2-Dichlorocyclohexane
what’s the mass of NaCL is in 0.625L of 0.207M solution
Answers
ANSWER
The mass of NaCl is 7.5 grams
EXPLANATION
Given that;
The volume of the solution is 0.625L
The molarity of the solution is 0.207 M
Follow the steps below to find the mass of NaCl
Step 1; Find the number of moles using the below formula
[tex]\begin{gathered} \text{ Molarity =}\frac{moles\text{ of solute}}{\text{ volume of solution}} \\ \end{gathered}[/tex][tex]\begin{gathered} \text{ 0.207 = }\frac{\text{ moles of solute}}{\text{ 0.625}} \\ \text{ cross multiply} \\ \text{ moles of solute = 0.207 }\times\text{ 0.625} \\ \text{ moles of solute = 0.1294 mole} \end{gathered}[/tex]Step 2; Find the mass of NaCl using the below formula
[tex]\begin{gathered} \text{ mole = }\frac{\text{ mass}}{\text{ molar mass}} \\ \text{ cross multiply} \\ \text{ mass = mole }\times\text{ molar mass} \end{gathered}[/tex]Recall, that the molar mass of NaCl is 58.44g/mol
[tex]\begin{gathered} \text{ mass = 0.1294 }\times\text{ 58.44} \\ \text{ mass = 7.5 grams} \end{gathered}[/tex]Therefore, the mass of NaCl is 7.5 grams
Do structural isomers have the same number of Carbon atoms?
Answers
Structural isomers have the same formula, but they have different bonds, that's why they can have the same number of carbon atoms.
Boron has a greater atomic radius than fluorine true or false?
Answers
Answer:
false trust me gang^^^
Explanation:
why is boiling point of vegetable oil higher than boiling point of maple syrup?
Answers
Firstly, what you need to understand is that boiling points reflect the intermolecular attractive forces within the sustance.
The stronger the intermolecular forces, the lower the vapor pressure of the substance and the higher the boiling point.
In this case, vegetable oil has stronger intermolecular forces, these forces are difficult to break, which then leads to increased/higher temperatures needed to break them. That is why vegetable oil has a boiling point of approximately 300 degrees celsius.
Maple syrup has a lower boiling point because its intermolecular forces are less stronger compared to vegetable oil. Not a lot of energy is required to break the intermolecular bonds, thus lower boiling temperature.
Carbon dioxide and water react to form methane oxygen like this: CO2(g)+2H2O(g)——>CH4(g)+2O2(g)The reaction is endothermic. How was the mixture of CO2, H2O, CH four and O2 has come to equilibrium in a closed reaction vessel. Predict that changed, if any, the perturbations In the table below will cause In the Composition Of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left.Perturbation: The temperature is raisedChange in composition:Pressure in the H20 will?Go up, go down, not change.Shift in equilibrium:To the right, to the left, none.Perturbation:The temperature is loweredChange in the composition:The pressure of the CH4 will?Go up, go down, not change.Shift in equilibrium:To the right, to the left, none.
Answers
ANSWER
An increased temperature will shift the equilibrium to the right and the pressure of water will be decreased.
A decreased in temperature will shift the equilibrium to the left and the pressure of the
STEP-BY-STEP EXPLANATION:
Firstly, we need to write out the balanced equation of the chemical equation.
[tex]CO_{2(g)}+2H_2O_{(g)}\rightarrow CH_{4_{((g)}}+2O_{2(g)}[/tex]What is chemical equilibrium?
Chemical equilibrium is the condition in the course of a reversible chemical reaction in which no net change in the amounts of reactant and products occurs.
According to the balanced equation, it shows that the reaction is an endothermic reaction. This means that heat was absorbed from the surroundings during the reaction.
To study the change in the equilibrium shift, we need to apply Le Chatelier's principle.
Le Chatelier's principle states that when an external constraint such as (temperature, pressure, or concentration) is imposed on a chemical system in equilibrium, the equilibrium of the system shift in order to annul or neutralize the effect of the constraints.
When the temperature of the chemical system is increased, the products side of the system will be favored. This is because an increase in temperature will lead to a faster collision between the two reactants, hence, producing more methane. Therefore, the equilibrium will shift to the left.
When the temperature is increased, the equilibrium will shift to the right.
The pressure of water will be decreased when the temperature is increased. This is because has no effect on the equilibrium system
When the temperature is lowered, the reactants side is favored and the equilibrium will shift to the left.
Looking at the balanced equation critically, the number of moles at the reactant side is equal to the number of moles at the sides of the product.
When the temperature is lowered, the pressure of methane gas will be decreased
For each of the given elements, list two other elements with similar chemical properties.
a. iodine (1)
b. barium (Ba)
c. iron (Fe)
Answers
Answer:
Iodine - > Fluorine, Bromine
Barium - > Beryllium, Magnesium
Iron - > Hassium, Osmium
Explanation:
What are the coefficients when the chemical equation below is balanced?___ Fe + ___ H2SO4 -> ___ Fe2(SO4)3 + ___ H21,1,1,12,3,3,32,3,1,33,2,3,1
Answers
Answer:
2, 3, 1, 3.
Explanation:
Remember that a balanced chemical equation is when we have the same number of elements for reactant and product side.
Let's see the unbalanced equation:
[tex]Fe+H_2SO_4\rightarrow Fe_2(SO_4)_3+H_2.[/tex]You can note that we have:
You can realize that we have Fe, S, and O unbalanced, but if we put '2' moles beside Fe, we will balance Fe, like this:
[tex]2Fe+H_2SO_4\operatorname{\rightarrow}Fe_2(SO_4)_3+H_2[/tex]Now, if we put '3' moles beside H2SO4 we will balance S and O, obtaining 3 moles of S, and 12 moles of O for both sides:
[tex]2Fe+3H_2SO_4\operatorname{\rightarrow}Fe_2(SO_4)_3+H_2[/tex]But H is unbalanced because on the left side we have 6 hydrogens but on the right side we have 2 hydrogens, so if we put '3' moles beside H2, we obtain the balanced chemical equation:
[tex]2Fe+3H_2SO_4\operatorname{\rightarrow}Fe_2(SO_4)_3+3H_2.[/tex]The order of the coefficients is 2, 3, 1, 3.
Answer:
2,3,1,3
Explanation:
I took the test
Name each of the following Acids and BasesH3PO3
Answers
So,
The compound:
[tex]H_3PO_3[/tex]Can be called as:
Phosphorous acid
Write the balanced molecular chemical equation for the reaction of solid lithium with aqueous chromium(III) acetate. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.
Answers
The balanced molecular chemical equation for the reaction of solid lithium with aqueous chromium(III) acetate is given below:
3 Li (s) + Cr(CH₃CO₂)₃ (aq) ---> 3 LiCH₃CO₂ + Cr(s)
What are chemical reactions?Chemical reactions are reactions that involve the rearrangement of atoms of the substances reacting such that new substances are formed.
Chemical reactions are usually represented using chemical equations.
Chemical equations can be written as molecular equations or as ionic equations.
Learn more about molecular chemical equations at: https://brainly.com/question/28851961
#SPJ1