2A: Mass, % Composition, Empirical/Molecular Formula
Chemistry
9th - 12th Grade
NGSS covered
Used 323+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the mass of calcium carbonate. Make sure to have the correct formula.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What are the units for molar mass?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass of one mole of aluminum chloride (remember to determine the correct formula first)?
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Find the percentage composition of Mg in Mg3(PO4)2.
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the percent composition of each element in N2S2 .
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the percent composition of hydrogen in (NH4)2S.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements
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