wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Stoichiometry & Gas Laws Review

Total questions: 35

Worksheet time: 1hrs 5mins

Name
Class
Date
1.

If 4.50 mol of ethane, C2H6, undergo combustion according to the unbalanced equation C2H6 + O2 --> CO2 + H2O, how many moles of oxygen are required?

a)

16.8 mol O2

b)

15.8 mol O2

c)

16.0 mol O2

d)

15.9 mol O2

2.

Convert the following into the unit specified: 125 mm Hg into atm.

a)

95000 atm

b)

0.165 atm

c)

6.08 atm

d)

950 atm

3.

A sample of gas at 47 degrees C and 1.03 atm occupies a volume of 2.20 L. What volume would this gas occupy at 107 degrees C and 0.789 atm?

a)

3.41 L

b)

5.01 L

c)

17.8 L

d)

0.09 L

4.

The pressure exerted on a 240. mL sample of hydrogen gas at consatnt temperature is increased from 0.428 atm to 0.724 atm. What will the final volume of the sample be?

a)

142 L

b)

142 mL

c)

0.1419 L

d)

141.878453 mL

5.

A mixture contains hydrogen gas with a partial pressure of 0.400 atm, oxygen gas with a partial pressure of 0.200 atm, and nitrogen gas with a partial pressure of 0.600 atm. What percentage of the gas is oxygen?

a)

33.3%

b)

20.0%

c)

16.6%

d)

25.0%

6.

2CO + O2 −-> 2CO2

How many liters of carbon dioxide at STP are produced from 10.0 L of carbon monoxide at STP?

a)

10.0 L

b)

20.0 L

c)

5010 L

d)

0.0199

7.

2Al + 6HCl --> 2AlCl3 + 3H2

Aluminium reacts with hydrochloric acid. How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP?

a)

13

b)

8.8

c)

0.99

d)

1.0

8.

1Mg + 2H2O --> Mg(OH)2 + H2

What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium?

a)

62.0 L

b)

0.12 L

c)

2.77 L

d)

1.15 L

9.
You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a sandwich.  If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly, what is the limiting reactant?
a)
bread
b)
jelly
c)
peanut butter
d)
sandwich
10.
When 12 moles of O2 reacts with 1.1 mole of C10H8 what is the limiting reactant?  C10H8 + 12 O2 --> 10 CO2 + 4 H2O
a)
Oxygen
b)
C10H8
c)
Water
d)
Carbon Dioxide
11.
2H2   +   O2  →  2H2O
How many moles of water can be produced if 8 moles H2 are used?
a)
4 moles
b)
8 moles
c)
16 moles
d)
2 moles
12.
What is the first thing you must do to solve a stoichiometry problem?
a)
Write a Balanced Equation
b)
Panic
c)
Write an Unbalanced Equation
d)
Ask for help
13.
2 KClO3 → 2 KCl + 3 O2
How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?
a)
6.7 mol
b)
1.0 mol
c)
10.1 mol
d)
4.5 mol
14.
KNO3 --> KNO2 + O2
What coefficients are needed to balance the reaction?
a)
2, 2, 1
b)
2, 3, 2
c)
1, 2, 2
d)
1, 3, 1
15.

How many grams are there in 31.8 moles of water? (H2O has a molar mass of 18.0 g/mol)

a)

572 g

b)

1.91 x 1025 molecules

c)

5.28x 1025 molecules

d)

1.77 g

16.
2Al + 3H2SO4 -> Al2(SO4)3 + 3H2
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?
a)
0.85 g
b)
290 g
c)
450 g
d)
870 g
17.
If a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the
a)
theoretical yield
b)
mole ratio
c)
actual yield
d)
percentage yield
18.
What is the measured amount of a product obtained from a chemical reaction?
a)
mole ratio
b)
theoretical yield
c)
percentage yield
d)
actual yield
19.
What is the mole ratio of H2O to H3PO4 in the following chemical equation?   P4O10 + 6 H2O --> 4 H3PO4 
a)
6:4
b)
4:6
c)
1:3
d)
3:1
20.
Identify the limiting reagent when 6.00 g HCl combines with 5.00 g Mg to form MgCl2.
 
Mg +  2HCl --> MgCl2  +  H2   
 
a)
Mg
b)
H2
c)
MgCl2
d)
HCl
21.
B2H6 + 3O2 -->2 HBO2 + 2 H2O
 What mass of O2 will be needed to burn 36.1 g of B2H6?
a)
13.8 g O2
b)
3.86 mol of O2
c)
124 g O2
22.
2 NaClO3 (s) --> 2NaCl (s) +3 O2 (g)  
12.00 moles of NaClO3 will produce how many grams of O2?
a)
256 g of O2
b)
576 g of O2
c)
288 g O2
23.
How many particles are in 13.5 grams of Beryllium?
a)
1.5 particles
b)
9 particles
c)
4x1023 particles
d)
9x1023 particles
24.
2CO  +  O2  −-> 2CO2
How many liters of carbon dioxide are produced from 10L of carbon monoxide?
a)
10
b)
20
c)
1
d)
5
25.
1 Body + 4 Tires --> 1 car
How many cars can you make with 92 tires and 34 bodies? 
In this senario the tires would be the _____________  reactant. 
a)
Limiting 
b)
Excess 
26.
4NH3 + 5O2 --> 4NO + 6H2O
How much excess reactant is leftover after if 6.30g of ammonia react with 1.80g of oxygen? 
a)
9.75 g NH3
b)
4.80 g O2
c)
0.765 g NH3
d)
5.54 g NH3
27.
4NH3 + 5O2 --> 4NO + 6H2O
How many grams of NO are formed if 6.30g of ammonia react with 1.80g of oxygen? 
a)
0.37g
b)
0.045g
c)
1.35g
d)
11.1g
28.
P4 + 6Cl2 --> 4PCl3 
The reaction of 75.0g P4 with excess chlorine gas produces 110g PCl3 in lab. Find the theoretical yield and calculate percent yield for the reaction. 
a)
78%
b)
64%
c)
27%
d)
33%
29.
Fe + S --> FeS
If 7.62g Fe react with 8.67g S, what is the limiting reactant?
a)
Fe
b)
S
c)
FeS
d)
none 
30.
PV=nRT
a)
Charles Law
b)
Boyle's Law
c)
Combined Gas Law
d)
Ideal Gas Law
31.
Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.
a)
7.18 L 
b)
7.81 L
c)
4.63 L
d)
4.36 L
32.
Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 
a)
0 K 
b)
107 K 
c)
207 K 
d)
307 K 
33.
What is the formula for Boyle's Law?
a)
P1V1=P2V2
b)
P1V1/P2V2
c)
P1V2=P2V1
d)
P1/V1=P2/V2
34.

In CHARLES'S LAW, volume and temperature have a ______ proportionality.

a)

direct

b)

inverse

c)

linear

d)

exponential

35.

Which Kelvin temperature is equal to  -28\degree C  ?

a)

235 K

b)

250 K

c)

245 K

d)

254 K

Similar Resources on Wayground

LIÊN KẾT CỘNG HÓA TRỊ -2024 (P1)

30 questions

LIÊN KẾT CỘNG HÓA TRỊ -2024 (P1)

quiz

Worksheet

•

11th Grade - University

Turunan Senyawa Alkana

30 questions

Turunan Senyawa Alkana

quiz

Worksheet

•

12th Grade

IPC Fall Final Exam Review Part 1

30 questions

IPC Fall Final Exam Review Part 1

quiz

Worksheet

•

7th - 12th Grade

Identification Test DK024 2.0

30 questions

Identification Test DK024 2.0

quiz

Worksheet

•

9th - 12th Grade

LARUTAN ASAM BASA

30 questions

LARUTAN ASAM BASA

quiz

Worksheet

•

10th Grade

Thermal Energy and Transfer

40 questions

Thermal Energy and Transfer

quiz

Worksheet

•

6th Grade - University

MINYAK BUMI

31 questions

MINYAK BUMI

quiz

Worksheet

•

11th Grade

Analisa Kimia Instrumen UH_3

30 questions

Analisa Kimia Instrumen UH_3

quiz

Worksheet

•

12th Grade