Chemistry Practice Problems Standard Temperature and Pressure Practice Problems Solution: The action of some commercial drain cleaners is ba...

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# Solution: The action of some commercial drain cleaners is based on the following reaction: 2 NaOH (s) + 2 Al (s) + 6 H2O (l) → 2 NaAl(OH)4 (s) + 3 H 2 (g) What is the volume of H2 gas formed at STP when 6.32 g of Al reacts with excess NaOH? A) 8.59 L B) 3.50 L C) 5.25 L D) 7.87 L

###### Problem

The action of some commercial drain cleaners is based on the following reaction:

2 NaOH (s) + 2 Al (s) + 6 H2O (l) → 2 NaAl(OH)(s) + 3 H (g)

What is the volume of H2 gas formed at STP when 6.32 g of Al reacts with excess NaOH?

A) 8.59 L

B) 3.50 L

C) 5.25 L

D) 7.87 L

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