it takes 165 Kj of energy to heat a certain sample of pure s

it takes 1.65 Kj of energy to heat a certain sample of pure silver from 12.0 C to 18.2 C. Calculate the mass of the sample of silver. Can you please explain how you answered this question so I can understand it on my final?

Solution

dq = m s dT

1.65 Kj = m *s* 6.2

             = m*0.24 J/degree C.g *6.2 degree C

so m = 1.65 * 1000 /0.24 *6.2 g

         = 1108.870 g