Question

mass percent of hydrogen in methane is​

Answer 1

Answer:

25.14 percent

The mass percent of hydrogen is methane is 25.14 percent.

Answer 2

$\checkmark$ Given:

Methane

$\checkmark$ To Find:

Mass percent of hydrogen in methane

$\checkmark$ Solution:

We know that,

$\red{\bigstar \ \boxed{\rm \%=\dfrac{m}{M} \ \times 100 \%}}$

Here,

• % = mass percentage of element
• m = molar mass of element
• M = molar mass of compound

According to the question,

We are asked to find the mass percentage of "Hydrogen"

Given that,

$\star$ Compound = Methane

Calculating molar mass of Methane

Hence,

$\star$ Molecular formula = CH₄

Therefore,

$\star$ Molar mass = 12 + 4 x 1 = 16

Hence,

• M = 16

We know that,

$\star$ Molar mass of hydrogen is 1

Hence,

• m = 1

By substituting the values,

We get,

$\blue{\rm \implies Hydrogen \ \%=\dfrac{1}{16} \times 100 \%}$

$\green{\rm \implies Hydrogen \ \%=0.25 \times 100 \%}$

$\orange{\rm \implies Hydrogen \ \%=25 \%}$

Therefore,

$\pink{\rm Mass \ \% \ of \ Hydrogen = 25\%}$