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Grade: 11

                        

hydrogen evolved ntp complete reaction 27g Al with excess aq naoh would be

2 years ago

Answers : (1)

Arun
24742 Points
							
Dear Kishan
 
The chemical reaction is 
2Al + 2NaOH + 2H2O → 2NaAlO2 + 3H2
 
Atomic mass of H2 = 27
 
For 2x27 the H2 liberated is 3x22.4 L as at STP 1 mole of H2 is 22.4 L
So, 27 g Al liberates 27x3x22.4/2x27 = 33.6 L H2
 
Regards
Arun (AskIITians Forum Expert)
2 years ago
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