Question

Find mass percent of Hydrogen in water ​

Answer 1

$\huge\red{AnsweR...}$

Thus, the percent composition of water, by mass, is 11.19% hydrogen and 88.81% oxygen..in water...

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Explanation:

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Answer 2

$\sf\large\underline\blue{Given:-}$

• Compound = Water

$\sf\large\underline\blue{To\: Find :-}$

• Mass percent of hydrogen in water.

$\sf\large\underline\blue{Formula\: used:-}$

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

Where,

• % = Mass percentage of element

• m = Molar mass of element

• M = Molar mass of compound

$\sf\large\underline\blue{Solution:-}$

Given that,

Compound = Water

We know that, molar mass of hydrogen is = 1

Now, calculate the molar mass of water.

Molar mass of water

= 1 × 2 + 16

= 18

Hence, M = 18

Substituting the values, we get

$\blue{\rm \implies Hydrogen \ \%=\dfrac{2}{18} \times 100 \%}$

$\blue{\rm \implies Hydrogen \ \%=0.1111\times 100 \%}$

$\blue{\rm \implies Hydrogen \ \%= 11.11 \%}$

$\small{\underline{\sf{\blue{Hence-}}}}$

$\green{\rm Mass \ \% \ of \ Hydrogen = 11.11\%}$

Remember that,

$\green{\rm Mass \ \% \ of \ Oxygen = 88.89\%}$