

%Comp, Empirical and Molecular Formulas
Presentation
•
Chemistry
•
10th - 11th Grade
•
Practice Problem
•
Hard
Standards-aligned
Clare Bowman
Used 40+ times
FREE Resource
10 Slides • 4 Questions
1
%Comp, Empirical and Molecular Formulas
Practice Quiz

2
This is your chance to see what type of questions will be on this Quiz.
The first slide will be the steps to solve the problems (also imbedded in the questions). Please review before you start the questions.
You need a periodic table (the digital version is best) and a calculator to solve the questions. Have those available before you start the questions.
The questions are timed in order for you to stay on track.
The Answers to each question are located after the Questions.
GOOD LUCK!!!
3
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Fill in the Blanks
Calculate the mass % of carbon that is in C2H5.
Type answer...
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7
Fill in the Blanks
What is the Empirical Formula for a substance that is 75% Carbon, 25% Hydrogen?
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Fill in the Blanks
Methylpropene is used to make synthetic rubber and contains 0.556g carbon, 0.0933g hydrogen. What is the empirical formula?
Type answer...
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Fill in the Blanks
Vinegar is a dilute solution of acetic acid. If the molar mass collected is 60 g/mol and the empirical formula is CH2O, what is the molecular formula of this acetic acid?
Type answer...
14
%Comp, Empirical and Molecular Formulas
Practice Quiz

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