A $2\mathrm{.}74g$ sample of a substance suspected of being pure gold is warmed to $73\mathrm{.}3C$ and submerged into $15\mathrm{.}8g$ of water initially at $24\mathrm{.}2C.$ The final temperature of the mixture is $26\mathrm{.}8C.$

Part A

What is the heat capacity of the unknown substance?

Express your answer in Joules per gram per degrees Celsius to two significant figures.

$\sqrt[]{}A$