can someone confirm answers to both pls

2.29 g of a salt (41.5 g mol-?) was dissolved in liquid water in a calorimeter with a calorimeter constant of 34.8 JK-1. Prior to mixing everything was equilibrated to 34.4 C. The resulting solution with a mass of 68.5 g was observed to be at a temperature of 7.4 C and have a specific heat capacity of 4.69 Jg-K-7. Determine q per mole for this dissolution process, O a. -1.57 x 105 J/mol O b.-9610 J/mol O c. 1.74 x 105 J/mol O d. 1.32 x 106 J/mol O e. 1.59 x 106 J/mol A change in a system occurs such that 79.3 J of heat flows from the surroundings to the system and 31.0 J of work is done on the system. What is the change in internal energy of the system? a. 110.3 J O b. -110.3 J O c. 31.0 J O d. 48.3 J O e. -48.3j