The molar heat capacity of silver is 25.35 j/mol⋅∘c. how much energy would it take to raise the temperature of 9.50 g of silver by 16.8 ∘c?

First we need to find how many moles are in the sample of silver of the problem.

The molar mass of silver is . This means that in m=9.50 g of silver we have


Now we can calculate the energy needed to raise the temperature of this amount of silver by :

Answer: fn = wcos50 = 38.89(9.81)(cos50) = 245.23 n