Stoichiometry and Percent Yield

Quiz
•
Science
•
10th Grade
•
Hard
Standards-aligned
Lisa Thompson
Used 1+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Your percent yield is 80%. The actual amount of product produced was 29.1 grams. What is the theoretical yield?
25.2 grams
37.3 grams
37.1 grams
36.3 grams
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a lab, a scientist calculate he should produce 12.3 grams of product in his experiment. When he is finished collecting his product it weighs 10.1 grams. What is his percent yield?
82%
0.82%
10.1 %
100%
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a limiting reagent?
any reactant used up first in a reaction.
any reactant left over at the end of a reaction.
the maximum amount of product formed from a given amount of reactant.
the purity of the reactant.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which reactant is the limiting reagent and why?
2H2(g) + O2(g) → 2H2O(l)
Hydrogen is the limiting reagent because two moles of hydrogen is required for every one mole of oxygen to produce two water.
Oxygen is the limiting reagent because two moles of hydrogen is required for every one mole of oxygen to produce two water.
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
FeBr2 + 2 KCl → FeCl2 + 2 KBr
b) What is my percent yield of iron (II) chloride if I started with 34 grams of iron(II) bromide and my actual yield is 4 grams?
20%
28%
13%
17%
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 5.2 grams of Mn(SO4)2 are actually formed in the lab, what is the percent yield?
The calculated number of grams for Mn(SO4)2 is 6.30 grams
37%
48%
53%
83%
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 10.5g of Na3N is decomposed, calculate the theoretical mass of sodium that should be produced. If only 2.84g of sodium is actually collected, what is the percent yield?
2Na3N → 6Na + N2
77%
65%
33%
54%
Tags
NGSS.HS-PS1-7
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