Percent Composition By Mass
Interactive Video
•
Science
•
•
Hard
Wayground Resource Sheets
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the percent composition by mass of an element in a compound calculated?
(Total molar mass of the element / Molar mass of the whole compound) * 100%
(Molar mass of the whole compound / Total molar mass of the element) * 100%
(Total molar mass of the element + Molar mass of the whole compound) * 100%
(Total molar mass of the element * Molar mass of the whole compound) / 100%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the percent composition by mass of Hydrogen in H2O? (Atomic mass of H = 1.01 g/mol, O = 16.00 g/mol)
11.2%
88.8%
2.02%
18.02%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the percent composition by mass of Iron in FeCl3. (Atomic mass of Fe = 55.85 g/mol, Cl = 35.45 g/mol)
65.57%
34.43%
55.85%
162.2%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the percent composition by mass of Carbon in C6H10O4. (Atomic mass of C = 12.01 g/mol, H = 1.01 g/mol, O = 16.00 g/mol)
72.06%
146.2%
49.29%
50.71%
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?
