A student measures a volume of methanol using a graduated cylinder that they have just washed but did not dry or rinse with methanol. What type of error could be introduced

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

Ab c or d ? i’m not sure what the answer is

What volume does 1.70 ×10–3 mol of chlorine gas occupy if its temperature is 20.2 °c and its pressure is 795 mm hg?