AnswersFL-2003350-Chemistry 1 HonorsPercent Composition and Molecular Formula

Percent Composition and Molecular Formula Answers

12 verified answers
1
Free Preview

Potassium permanganate (KMnO4) reacts with hydrochloric acid (HCl) to form potassium chloride (KCl), manganese chloride (MnCl2), water (H2O), and chlorine gas (Cl2). The balanced chemical equation is 2KMnO4 + 16HCl → 2KCl + 2MnCl2 + 8H2O + 5Cl2. Select the correct ratios of each of the following substances.KMnO4:KCl =

A
2:2
B
1:2
C
2:1
2
Free Preview

HCl:H2O =

A
1:1
B
16:8
C
8:16
3

KMnO4:Cl2 =

A
2:1
B
5:2
C
2:5
4

HCl:MnCl2 =

A
1:2
B
16:2
5

moles H2O

Answer:

13.8 moles H2O

6

How many moles of copper must react to form 0.854 mol Ag? mol Cu

Answer:

0.427

7

Question text not available

A
Yes, and I got the correct answer.
B
Yes, but I got the wrong answer because I made a mathematical error.
C
No, I did not set up the equation correctly.
8

For the reaction2Fe + 3Cl2 → 2FeCl3which of the following options gives the correct reactant:reactant ratio?

A
Fe:Cl2 = 1:1
B
Fe:Cl2 = 2:3
C
Fe:Cl2 = 3:2
D
Fe:FeCl3 = 1:1
9

Question text not available

A
0.835 mol O2
B
1.67 mol O2
C
3.34 mol O2
D
6.68 mol O2
10

A quantity of NH3 decomposes to produce 0.0351 mol N2. How many moles of H2 are produced?

A
0.0351 mol H2
B
0.0117 mol H2
C
0.105 mol H2
D
0.0702 mol H2
11

Question text not available

A
Yes, and I got the correct answer.
B
Yes, but I got the wrong answer because I made a mathematical error.
C
No, I did not set up the equation correctly.
12

For the reaction2C6H5COOH + 15O2 → 14CO2 + 6H2Owhich of the following options gives the correct product:product ratio?

A
CO2:H2O = 14:6
B
CO2:H2O = 6:14
C
CO2:H2O = 1:1
D
O2:H2O = 15:6

Did you find these answers helpful?

More from this Course

Instruction
16 verified answers

Instruction

Assignment
22 verified answers

Percent Composition and Molecular Formula

Assignment
15 verified answers

Percent Composition and Molecular Formula

Percent Composition and Molecular Formula…