Empirical Formula Calculations
Authored by Lisa Thompson
Science
10th Grade
NGSS covered
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A compound is 16.3% C, 32.1% Cl and 51.6% F by mass. What is the empirical formula?
C3Cl2F6
C1.5Cl F3
C2Cl3F6
C3Cl6F2
Tags
NGSS.HS-PS1-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determine the empirical formula for a compound that is 23.3% Co, 25.3% Mo and 51.4% Cl by mass. What is the empirical formula?
Co Mo Cl4
Co3Mo2Cl11
Co2MoCl3
Co2MoCl9
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3.245 g of a compound containing titanium and chlorine is separated into elements. If 0.819 g of the sample is titanium, what is the empirical formula of the compound? HINT: find the mass of chlorine first.
TiCl4
TiCl
TiCl3
TiCl2
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A formula that shows the smallest whole-number mole ratio of the elements of a compound, and may or may not be the same as the actual molecular formula.
Empirical Formula
Molecular Formula
Stoichiometry
Chemical Reaction
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An empirical formula:
is a formula that calculates the coefficients of a compound in a balanced equation.
is the simplest whole-number ratio of moles of elements in the compound.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the empirical formula for a compound which contains 32.8% chromium and 67.2% chlorine.
CrCl
CrCl3
Cr3Cl
Cr2Cl6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A compound is 40% sulfur and 60% oxygen by mass. What is the empirical formula?
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?
