The heat of fusion of a metal is 5.53 J/g at its

freezing (melting) point of 559◦F. How much
of this solid metal (already at 559◦F) can be
melted if 3382 J of energy are available?
Answer in units of g.

I don't know how to set up the problem

q = mass metal x heat fusion.

You know q and heat fusion, solve for mass metal.