Question

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 H2(g)
What is the volume of H2 gas formed at STP when 6.32 g of Al reacts with excess NaOH?
A) 3.50 L
B) 5.25 L
C) 7.87 L
D) 8.59 L

Answer

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