
Stoichiometry Practice Challenge
Interactive Video
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Medium
Ethan Morris
Used 9+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the coefficient of H2S when balancing the equation to ensure 8 sulfur atoms on the right?
2
4
16
8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many moles of chlorine (Cl2) are required to produce 50.4 moles of HCl?
50.4 moles
25.2 moles
100.8 moles
12.6 moles
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of propane (C3H8) used in the grams to grams conversion?
30.07 grams/mole
44.094 grams/mole
28.05 grams/mole
58.124 grams/mole
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many grams of O2 are needed to completely react with 81.7 grams of propane?
150 grams
500 grams
296 grams
350 grams
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the coefficient ratio of H2O to H3PO4 in the balanced equation from Part C?
3:2
4:1
2:3
1:1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many grams of phosphoric acid (H3PO4) can be produced from 5.64 grams of water?
20.5 grams
41 grams
10.25 grams
30.75 grams
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of water used in the conversions?
16.00 grams/mole
17.01 grams/mole
20.02 grams/mole
18.016 grams/mole
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