Find the Mass Percentages H

$H$

Step 1

To find the mass of $1$ mole of $H$ look up the atomic mass of each element and multiply it by the number of atoms contained in each element in the molecule.

mass of $1$ mole of $H$ $=$ $(mass of H)$

Step 2

Fill in the atomic masses from the periodic table.

mass of $1$ mole of $H$ $=$ $(1.00999999)$

Step 3

Remove parentheses.

mass of $1$ mole of $H = 1.00999999 g$

Step 4

Find the mass percentage of $H$ .

The mass composition percentage is the mass of $H$ divided by the mass of the entire molecule converted to a percentage.

Mass percentage of $H = \frac{1.01}{1.00999999} \cdot 100$

Divide $1.01$ by $1.00999999$ .

$1 \cdot 100$

Multiply $1$ by $100$ .

$100.00000094$

Set the number as a percent.

Mass percentage of $H = 100.00000094 %$

Find the Mass Percentages H

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