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Copy of Percent Composition Practice (5/28/2026)
By Jason Poe
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Last updated about 2 hours ago
10 questions
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Untitled Section 1
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Independent Questions
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Question 1
1.
What is the percent composition for each atom in KMnO
3
Molar Mass: _______
Percent Compositions:
K _______
Mn _______
O _______
Question 2
2.
What is the percent composition for each atom in H
2
SO
4
Molar Mass: _______
Percent Compositions:
H _______
S _______
O _______
Question 3
3.
What is the percent composition for each atom in C
3
H
3
O
2
Molar Mass: _______
Percent Compositions:
C _______
H _______
O _______
Question 4
4.
What is the percent composition for each atom in PbSO
4
Molar Mass: _______
Percent Compositions:
Pb _______
S _______
O _______
Question 5
5.
What is the percent composition for each atom in HCl
Molar Mass: _______
Percent Compositions:
H _______
Cl _______
Question 6
6.
What is the percent composition for each atom in HNO
3
Molar Mass: _______
Percent Compositions:
H _______
N _______
O _______
Question 7
7.
What is the percent composition for each atom in BeCl
3
Molar Mass: _______
Percent Compositions:
Be _______
Cl _______
Question 8
8.
What is the percent composition for each atom in CuBr
2
Molar Mass: _______
Percent Compositions:
Cu _______
Br _______
Question 9
9.
What is the percent composition for each atom in N
2
S
2
Molar Mass: _______
Percent Compositions:
N _______
S _______
Question 10
10.
What is the percent composition for each atom in NaOH
Molar Mass: _______
Percent Compositions:
Na _______
O _______
H _______