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Posted by on Friday, April 13, 2012 at 4:27pm.

Suppose a fuel-cell generator was used to produce electricity for a house. If each H2 molecule produces 2e- how many kilograms of hydrogen would be required to generate the electricity needed for a typical house? Assume the home uses about 850 kWh of electricity per month, which corresponds to approximately 2.65 x 10^4 mol of electrons at the voltage of a fuel cell.

  • Chemistry - , Friday, April 13, 2012 at 4:57pm

    Each mole of H2 provides 2 moles of electrons.

    so how many moles of H2?
    molesH2=2.65E4molese-/2molese-

    molesH2= 1.37E4moles

    how many grams of H2 is that? how many kg?

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