Each mole of Ca produces one mole of H2
So, how many moles of CaO2 do you have?
How many grams in that many moles of H2?
Calcium reacts with water to yield calcium hydroxide and water according to the following equation: Ca + 2H2O ==> Ca(OH)2 + H2 . How many moles of hydrogen will be produced if 3115.8 grams of calcium hydroxide is produced?
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