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For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make 197 grams of methane, CH4 ? Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0 Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.: Element Molar Mass Hydrogen 1 Carbon 12

Sagot :

RilakkuOats
(107.1g CH4) * (1 mol CH4 / 16.0g CH4) * (2 mol H2 /1 mol CH4) = 13.4 moles of H2 gas.
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