% Comp/Empirical/Molecular Formulas
Authored by Patricia Drake
Chemistry
11th - 12th Grade
NGSS covered
Used 1K+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the percent by mass of oxygen in MgO?
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the percent by mass of sodium in NaCl?
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the percent by mass of fluorine in CaF2 (gram-formula mass = 78 g/mol)?
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the percent composition by mass of oxygen in the compound MgSO4 (gram formula mass = 120 g/mol)?
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which pair has the same empirical formula?
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula?
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
