# What is the molecular formula of a compound with an empirical formula of C_4H_9 and a gram-formula mass of 114.0 g/mole?

May 9, 2017

2-Butyl

#### Explanation:

Butyl (4 carbons and 9 hydrogen) has an average mass of 57 grams per mole.

Since you are given 114 grams, there are 2 molecules in this butyl.

2(${C}_{4} {H}_{9}$) is the formula.

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