Stoichiometry 2

Quiz
•
Chemistry
•
9th Grade
•
Medium
Standards-aligned
Stephanie Belli
Used 9+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
2NaN3 → 2Na + 3N2
How many grams of NaN3 are needed to produce 10.0 L of N2 at 1.50 atm and 25.0°C?
20.5 g
32.8 g
15.0 g
26.5 g
Tags
NGSS.HS-PS1-5
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
2CO + O2 → 2CO2
How many moles of carbon monoxide are needed to react with 12.30 L of oxygen gas at STP?
3.149 mol CO
31.80 mol CO
1.098 mol CO
20.10 mol CO
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the volume occupied by one mole of an ideal gas at standard temperature and pressure (STP)?
6.022x10^23
1
Molar Mass
22.4 liters
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for the mass of one mole of a substance?
Avogadro's Number
Atomic Mass
Molar Mass
Mole Fraction
5.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Given the equation:
2NaClO3 (s) → 2NaCl (s) + 3O2 (g)
When 2.00 moles of NaClO3 react, how many grams of O2 is produced?
56 g of O2
96 g of O2
64 g O2
32 g O2
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
In a chemical reaction, which numbers indicate the proportions of reactants and products?
Subscripts
Superscripts
Coefficients
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Using the following equation:
2KClO3(s) → 2KCl(s) + 3O2(g)
How many moles of oxygen gas can be produced from 8 moles of KClO3?
12 moles O2
8 moles O2
6 moles O2
4 moles O2
Tags
NGSS.HS-PS1-7
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