a) It requires 105 J of heat to raise the temperature of 64.5 g of cadmium from 285.0 K to 293.2 K. What is the molar he...

Question

Question

a)

It requires 105 J of heat to raise the temperature of 64.5 g of cadmium from 285.0 K to 293.2 K. What is the molar heat capacity of cadmium?

b)

Urea ((NH₂)₂CO) can be formed from ammonia and carbon dioxide as shown in the reaction:

2NH₃(g) + CO₂(g) → (NH₂)₂CO(s) + H₂O(l)

The ΔH^o_rxn for this synthesis is equal to -134.0 kJ. Calculate the ΔH^o_f for urea. (Enter your answer in kJ/mol).

Answer 1

Answer #1

Date moles of Cadmuim mass. molar mey 64.59 112.4 Inal 0.574 mal Mole heat capacity : q noly A7 1053 0.57Ymol ( 293.2-28512)

Answer 2

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