Question

if the heat of fusion of copper is 48.9 cal/g how many kcal/mol is this?

Answer 1

1 cal =4.814 J

then divide the number you get by the molar mass of copper

Answer 2

From Cal to Kcal, divide the 48.9 with 100,
then for conversion from per gram to per mol, multiply the above obtained value with molar mass of Cu.

Answer 3

@aaronq bro the question is about the conversion of Cal/g to Kcal/mole.....

Answer 4

oh i saw "kJ" lol i guess you see what you want to see.

ps 1000 cal = 1 kcal so you'd divide by 1000 not 100.

and you do divide by the molar mass not multiply.

\(x ~grams*\dfrac{1}{z~g/mol}=\dfrac{x}{z} ~mol\)

Answer 5

:)