A chemist carefully measures the amount of heat needed to raise the temperature of a 789.0 mg sample of C, H, O, from 28.4 C to 44.4 C. The experiment shows that 19.9 1 of heat are needed. What can the chemist report for the molar heat capacity of C H 0,7 Round your answer to 3 significant digits 0.1 ? Calculate the energy required to heat 1.80 kg of silver from 2.9 C to 19,0 C. Assume the specific heat capacity of silver under these conditions is 0.235 g K. Round your answer to 3 significant digits 0 % 0.0 DO X 5