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Chemistry

Answered

In a coffee-cup calorimeter, 100.0 g of H2O and 8.70 grams of Na3PO4 are added. The water had an initial temperature of 24.6 oC. After the dissolution of the sodium phosphate the temperature changed to 31.3 oC.

-Was the dissolution exothermic or endothermic? Explain.

-Calculate how much heat the water lost or gained.

Answer :

JOKERHATX375GO JOKERHATX375GO

Answer:

a.) exothermic

b.) 2,800.6 J

Explanation:

View image JOKERHATX375

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