Mole Ratio and One-Step Stoichiometry Practice

Quiz
•
Science
•
10th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Use the following equation:
2NaOH(aq) + H2SO4(aq) --> 2H2O(l) + Na2SO4(aq)
How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide?
150.22 g Na2SO4
593.44 g Na2SO4
330.04 g Na2SO4
297.65 g Na2SO4
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
151 grams of Al2O3 are produced. How many grams of Al was needed in the reaction? Al + O2 -------> Al2O3 balance first.
79.91 g
22.4 liters
57.8 g
142.8 g
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the Balanced Reaction: 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe; What is the Ratio of moles of Mg to moles Fe?
3mol Mg / 2 mol Fe
2 mol Mg/ 3 mol Fe
1 mol Fe/ 2 mol Fe
3 mol MgO / 2 mol Fe
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
CO (g) + O2(g) → 2 CO2 (g)
In the formation of CO2 from CO and oxygen, how many Liters of CO2 are produced by the reaction of 8 mols of O2 with an excess of carbon monoxide?
0.178 L
358.4 Liters
704 grams
0.36 grams
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using the balanced equation in question 5, CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of H₂O are needed if 3.20 moles of CaC₂ are consumed?
115 g
28.8 g
0.0889 g
6.40 g
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What conversion factor do you always use in stoichiometry problems?
reciprocal of the molar mass of a substance
molar mass of a substance
mole ratio
molar volume of a gas
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the mole ratio of the hydrogen to oxygen in the Synthesis reaction: hydrogen reacts with oxygen to give you H2O?
1:1
1:2
2:1
2:2
Tags
NGSS.HS-PS1-7
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