1. Butyric acid is a fatty acid occurring in the form of esters in animal fats. A sample of butyric acid contains 54.53 g C, 9.15 g H, and 36.32 g O. The molar mass of butyric acid is 88.11 g/mol. Determine (a) and (b). Show your work. A. Empirical formula of butyric acid B. Molecular formula of butyric acid

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Asked Dec 11, 2019
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1. Butyric acid is a fatty acid occurring in the form of esters in animal fats. A sample of butyric acid contains 54.53 g C, 9.15 g H, and 36.32 g O. The molar mass of butyric acid is 88.11 g/mol. Determine (a) and (b). Show your work. 

A. Empirical formula of butyric acid 

B. Molecular formula of butyric acid 

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Expert Answer

Step 1

It is required to calculate the empirical and molecular formula of butyric acid.

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Mass of C = 54.53 g Mass of H = 9.15 g Mass of O = 36.32 g

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Step 2

Calculating the number of moles of each element present,

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Given mass No. of moles Molecular Mass 54.53 No. of moles of C 4.54 moles 12 9.15 := 9.15 moles No. of moles of H= 36.32 = 2.27 moles No. of moles of O = 16

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Step 3

To obtain the empirical formula, divide all the values by the smallest...

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4.54 =2 2.27 9.15 = 4.03 - 4 н 2.27 2.27 = 1 2.27

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