It takes 3.2×103 J of heat to melt an amount of gold (ΔHf=6.30×104 Jkg/) . How much gold do you have?
5.1 g
0.051 g
51 g
19 g
im stuck between b and c .
3.2 x 103 J / 6.30 x 104 J / kg = .051 kg = 51 g