Here the example says if one 5.7g silver raised its temperature by 17.2�C, when it absorbs 6845.5 joules, what is its molar heat capacity? So molar heat capacity uses capital C. It's equal to heat, which is Q divided by moles N times change in temperature.

In the question it says that we're absorbing this much energy. That means that that's a positive cue. So that's +6845.5 Joules. Next we need moles, and we already have the change in temperature. They say that the temperature was risen by 17.2�C, so that's already our change in temperature.

We need moles. We have here 15.7 grams of silver, which is AG. We have to change that to molds. SO1 mole of silver weighs one O 7.87g according to the periodic table, so that comes out to be .145548 moles of silver. Take those moles and plug it in.

So when we do that, that's going to give me my molar heat capacity AS27 34.45 Joules over moles times degrees Celsius. If we look at our values, this has three sig figs and this has three sig figs. So I could change this to 2.73 * 10 to the three joules over moles times degrees Celsius. So that would be the molar heat capacity for silver under these conditions.