Stoichiometry and Matter Quiz

Quiz
•
Chemistry
•
University
•
Medium

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the stoichiometric coefficient of oxygen in the balanced chemical equation: 2C4H10 + 13O2 → 8CO2 + 10H2O?
13
8
5
2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the definition of a mole in chemistry?
The unit of measurement for volume in chemistry
Amount of a substance that contains the same number of entities as there are atoms in 12 grams of carbon-12
The process of grinding a solid into a fine powder
The small burrowing mammal with dark velvety fur
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many atoms are present in one mole of carbon?
3.14 x 10^23
1.505 x 10^24
9.999 x 10^22
6.022 x 10^23
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calculate the number of moles in 25 grams of water (H2O).
2.5 moles
0.25 moles
1.39 moles
0.5 moles
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the mass of one mole of oxygen?
8.00 g/mol
16.00 g/mol
24.00 g/mol
32.00 g/mol
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a reaction, 4 moles of A react with 3 moles of B. Which is the limiting reactant?
Both A and B
A
B
None of the above
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many grams of water can be produced from 5 moles of hydrogen and 2 moles of oxygen?
3 moles of water
10 moles of water
7 moles of water
12 moles of water
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