Question #ee354

1 Answer
P dilip_k
Oct 14, 2016

Molar mass of Hydrogen#=2" g/mol"#
Amount of Hydrogen to be produced

#=10g =(10g)/(2g/"mol")=5mol#

Reaction used

#Zn+2HNO_3->Zn(NO_3)_2+H_2#

This equation reveals that 1 mol Hydrogen is produced if 2 mol #HNO_3# is reacted with excess Zn.

To produce 10g or 5 mol #H_2# we require #5xx2=10" mol "HNO_3#

This amount of #HNO_3# can be obtained from 2M solution having volume #V=(10mol)/(2"mol"/L)=5L#

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