Question

2.3g of na reqcts with water . calculate the mass of naoh formed. what will be the volume of h2 evolved at ntp​

Answer 1

Answer:

The given reaction is, 2Na+2H2O→2NaOH+H2

From equation, it is evident :

46gNa reacts to liberate 1 mole H2

∴23gNa reacts to liberate (1×23)/46=1/2moleH2

∴ Weight of H2 liberated =(1/2)×2=1g

Also, volume of H2

at STP =22400×

2

1

=11200mL

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