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Molar Mass to Molecular Formula Quiz

Froggy Jumps

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Determine molecular formulas from empirical formulas.

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Molar Mass to Molecular Formula Quiz
 

Froggy Jumps

Molar Mass to Molecular Formula QuizOnline version

Determine molecular formulas from empirical formulas.

by Lillian Dougherty
1

1) The carbohydrate fructose found in honey and fruits has an empirical formula of CH2O. If the experimental molar mass of fructose is 180 g, what is it's molecular formula?

2

2) Caffeine has an empirical formula of C4H5N2O. If it has an experimental molar mass of 194 g, what is the molecular formula of caffeine?

3

3) Benzene and acetylene have the same empirical formula, CH. However, benzene has an experimental molar mass of 78 g and acetylene has an experimental molar mas of 26 g. What is the molecular formula of benzene?

4

4) Benzene and acetylene have the same empirical formula, CH. However, benzene has an experimental molar mass of 78 g and acetylene has an experimental molar mas of 26 g. What is the molecular formula of acetylene?

5

5) Mevalonic acid is involved in the biosynthesis of cholesterol. Mevalonic acid contains 48.64% C, 8.16% H, and 43.20% O. If mevalonic acid has an experimental molar mass of 148 g, what is its molecular formula?

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