Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food. When 10.0 g of NaCl are added in 200.0 mL of water at 25.0OC in a coffee-cup calorimeter, 669 J of heat are absorbed. (Assume that there is no change in volume, d=1.00 g/mL,, specific heat=4.18 J/g.OC) a) Is the solution process exothermic? b) What is qH2O ? c) What is the final temperature of the solution?

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Chapter1: Chemical Foundations
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Sodium chloride, the table salt (NaCl) is added in
cooking to enhance the flavor of the food. When
10.0 g of NaCl are added in 200.0 mL of water at
25.0OC in a coffee-cup calorimeter, 669 J of heat
are absorbed. (Assume that there is no change in
volume, d=1.00 g/mL,, specific heat=4.18 J/g.OC)

a) Is the solution process exothermic?

b) What is qH2O ?

c) What is the final temperature of the solution?

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