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Calculate the mass percent of each element in a compound .
Methane,CH₄(C = 12.01 g/mol);H = 1.008 g/mol)​

Sagot :

Solution (Problem 1)

Step 1: Calculate the molar mass of CH₄.

molar mass = (12.01 g/mol × 1) + (1.008 g/mol × 4)

molar mass = 16.042 g/mol

Step 2: Calculate the mass percent of each element in CH₄.

For %C

[tex]\% \: \text{C} = \frac{\text{12.01 g/mol × 1}}{\text{16.042 g/mol}} × 100[/tex]

[tex]\boxed{\% \: \text{C} = 74.87\%}[/tex]

For %H

[tex]\% \: \text{H} = \frac{\text{1.008 g/mol × 4}}{\text{16.042 g/mol}} × 100[/tex]

[tex]\boxed{\% \: \text{H} = 25.13\%}[/tex]

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