Question

calculate the percentage composition of CH3OH​

Answer 1

Answer:

Element Number Mass Percet Composition

H 4 1.0079 12.582392889244

O 1 16.00 49.9350843902926

C 1 12.01 37.4825227204634

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Total MW = 32.0416 Total percent composition = 100

Answer 2

Explanation:

Molecular formula of methanol CH3OH

Molecular mass of methanol = 1x12.01+4x1.008+ 1x16.0

= 32.042 gm

Percent composition of carbon =

Mass of carbon x 100

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Molecular mass of CH3OH

= 12.01 / 32.042 X 100 = 37.48%

Percent composition of Hydrogen = Mass of Hydrogen x 100

Molecular mass of CH3OH

= 4.032 x 100 / 32.042 = 12.5%

Percent composition of Oxygen = 16x100 / 32.04 = 49.93%