1.

What would be the heat released when an aqueous solution containing 0.5 mole of HNO_(3) is mixed with 0.3 mle of OH^(-)? (Enthalpy of neutralisation is -57.1 kJ)

Answer»

28.5 kJ
17.1 kJ
45.7 kJ
1.7 kJ

Solution :0.5 mole of `HNO_(3)-=0.5` mole of `H^(+)` and 0.3 mole of `OH^(-)`
`0.5H^(+)(AQ)+0.3OH^(-)(aq)to0.5H_(2)O(L)`
`DeltaH=0.3xx57.1=17.13kJ`


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