A sample of is reduced by excess to give and . The volume of produced at STP is . ()

Question

A  sample of  is reduced by excess  to give  and . The volume of  produced at STP is  . ()

Canvas Classes · Accepted Answer

Strategy:
 Use stoichiometry to relate the mass of the reactant to the volume of the gaseous product. Every 1 mole of  produces 3 moles of  gas. Finally, convert those moles to volume at STP using .

Step 1: Calculate moles of reactant
Molar mass of .

Step 2: Calculate volume of product at STP
Reaction: .
Moles of .

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