Answer to Question #59429 in General Chemistry for Maxwell Davies

Question #59429

How much ammonia (NH3) could be melted by the addition of 3.5 kJ of heat, if the temperature of the liquid is at the melting point? (ΔHfus=5.66 kJ/mol)

Expert's answer

Q=ΔHfus·n
n=m/M
M (NH3)=17 g/mol
m (NH3)=(Q·M)/ΔHfus
m (NH3)=(3.5·17)/5.66=10.5 g

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