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Dmitrij [34]
3 years ago
11

200 grams of an organic sample which contains only carbon, hydrogen, and oxygen is analyzed and found to contain 97.30 grams of

carbon, 16.22 grams of hydrogen and the remainder oxygen. What is the empirical formula for the compound?

Chemistry
2 answers:
faltersainse [42]3 years ago
4 0

Answer:

The Empirical formula of an organic compound is=C_3H_6O_2

Explanation:

Mass of an organic compound = 200 g

Mass of carbon = 97.30 g

moles of carbon = \frac{97.30 g}{12 g/mol}=8.108 mol

Mass of hydrogen = 16.22 g

Moles of hydrogen = \frac{16.22 g}{1 g/mol}=16.220 mol

Mass of oxygen = 200 g - 97.30 g - 16.22 g = 86.48 g

Moles of oxygen =\frac{86.48 g}{16 g/mol}=5.405 mol

Divide the all the moles of element with smallest value of moles.

Carbon = \frac{8.108 mol}{5.405 mol}=1.5

Hydrogen = \frac{16.220 mol}{5.405 mol}=3

Oxygen =\frac{5.405 mol}{5.405 mol}=1

Empirical formula =C_{1.5}H_3O_1

Converting them into whole number ratios.

Empirical formula =C_3H_6O_2

ipn [44]3 years ago
3 0
The empirical formula for 200 grams of an organic sample which contains carbon,hydrogen, and oxygen is C3H6O

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