0.0725 faradays of electricity had to be passed through the solution.
Explanation:
Find how many hydrogen moles are produced.
1 mole of any gas consumes 24 liters at room temperature
atmospheric pressure 1 environment is 760 mm Hg
temperature is 25 deg C
so if you reduced the pressure down to 760 mm Hg on that 0.845 liters you've gathered, you would discover the volume expanded to
0.845 x 782/760 = 0.869 liters
which equals to 0.0362 moles (divide by 24)
since every atom of hydrogen required 2 electrons to be made, hence we need 0.0725 moles of electrons or 0.0725 faradays.
0.0725 faradays of electricity had to be passed through the solution.
1 mole of any gas consumes 24 liters at room temperature
Given:
Atmospheric pressure 1 environment= 760 mm Hg
Temperature = [tex]25^oC[/tex]
When the pressure is dropped down to 760 mm Hg on that 0.845 liters you've gathered, you would discover the volume expanded to
[tex]0.845 *\frac{782}{760} = 0.869 \text{ liters}[/tex]
As every atom of hydrogen required 2 electrons to be made, Hence we need 0.0725 moles of electrons or 0.0725 faradays.
Find more information about Faraday of electricity here:
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