Percent composition and Empirical formulas
Chemistry
10th - 12th Grade
NGSS covered
Used 108+ times
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29 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent by mass of magnesium in MgO?
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent by mass of sodium in NaCl?
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent by mass of chlorine in NaCl?
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent composition by mass of sulfur in the compound MgSO4 (gram formula mass = 120 g/mol)?
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent composition by mass of magnesium in the compound MgSO4 (gram formula mass = 120 g/mol)?
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent by mass of oxygen in MgO?
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent by mass of fluorine in CaF2 (gram-formula mass = 78 g/mol)?
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