Question

What is the heat in joules required to convert 75.0 grams of water into steam if the ^Hvap of water is 2257j/g?

Answer 1

169 000 J. It takes 169 000 J to convert 75.0 g of water to steam.

q = mΔHvap = 75.0 g x (2257 J/1 g) = 169 000 J