Question

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Convert 9.04 x 10 22 atoms of H2 gas to moles.

Answer 1

`0.075\:moles`

Step-by-step explanation:

Since, 1 molecule of hydrogen gas, there're 2 atoms of hydrogen:

1 mole of
`H_2` has
`2* 6.023 * 10^(23)` atoms.

Switch sides and make it a equation.

1 atom of
`H_2` =
`(1)/(2* 6.022*10^(23))` moles of
`H_2`

`9.04* 10^(22)` atoms of
`H_2` =
`(9.04* 10^(22))/(2* 6.022* 10^(23))` moles of
`H_2`