Mole Calculations Practice
Quiz
•
Science
•
10th Grade
•
Medium
Standards-aligned
Brandy Giles
Used 6+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
How many grams are in 7.8 moles of NaCl?
476 grams
456 grams
452 grams
462 grams
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
N2 + 3H2 → 2NH3
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
1
2
3
6
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calculate the number of particles (atoms) in 0.250 moles of silver.
1.62 x 1025 atoms Ag
4.15 x 10-25 atoms Ag
1.51 x1023 atoms Ag
27.0 atoms Ag
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the percent composition of C in C4H10?
48.0%
58.0%
17.2%
82.8%
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
4NH3(g) + 6NO(g) --> 5N2(g) + 6H2O(g)
How many moles of ammonia are needed to form 0.65 moles of nitrogen with excess quantities of nitrogen monoxide?
0.65 moles of NH3
4.0 moles of NH3
2.6 moles of NH3
0.52 moles of NH3
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2Na(s) + Cl2(g) --> 2NaCl(s)
3.0 moles of chlorine are reacted with 3.0 sodium, what was the theoretical yield (how much NaCl should have been produced)?
6.0 mol NaCl
3.0 mol NaCl
9.0 mol NaCl
1.5 mol NaCl
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If the theoretical yield is 18 moles and the actual yield is 14 moles, what is the percent yield?
128.6%
32.0%
77.8%
92.4%
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