Stoichiometry
Authored by Rory Sheats
Chemistry
10th Grade
NGSS covered
Used 24+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the following reaction:
Mg + 2 HCl → MgCl2 + H2
1. What is the correct number of moles of H2 that is produced from 13.2 moles of magnesium in the presence of excess of magnesium?
dd
dd
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the following reaction:
Mg + 2 HCl → MgCl2 + H2
What mass of HCl is needed to produce 12.5 moles of hydrogen gas?
dd
dd
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the following reaction:
Mg + 2 HCl → MgCl2 + H2
If 123.2 g of magnesium chloride are produced from 60.0 g HCl, what is the percent yield of the reaction?
dd
dd
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the following reaction:
Mg + 2 HCl → MgCl2 + H2
What mass of hydrogen chloride is needed to use up 35.0 g magnesium?
dd
dd
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the following reaction:
Mg + 2 HCl → MgCl2 + H2
What is the theoretical yield of hydrogen gas in a mixture of 15.0 g Mg and excess HCl?
dd
dd
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the following reaction: N2 + 3 H2 → 2 NH3
What is the correct number of moles of H2 that is reacted to produce 13.2 moles of ammonia (NH3) in the presence of excess of nitrogen?
dd
dd
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the following reaction:
N2 + 3 H2 → 2 NH3
What mass of hydrogen gas is needed to produce 12.5 moles of ammonia?
dd
dd
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