When 4.102 g of KNO3 is dissolved in 39.825 g of water in a "coffee-cup calorimeter"...

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When 4.102 g of KNO3 is dissolved in 39.825 g of water in a "coffee-cup calorimeter"...

When 4.102 g of KNO₃ is dissolved in 39.825 g of water in a "coffee-cup calorimeter" at 24 degrees Celsius, the temperature of the solution went down to 19 degrees Celsius.

a.) Is this solution reaction exothermic or endothermic? Why?

b.) Calcualate q_H2O using Eq. 1.

c.) Find $\Delta H$ as it occured in the calorimeter (Eq. 4).

d.) Find $\Delta H$ for the solution of one mole KNO₃ in water.

e.) Find $\Delta H$ for the solution of 1.00 g KNO₃ in water.

science chemistry

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Answer 1

Answer #1

halees pl ace mass et ut382s a The soluhon neachom is endothermut becauas the [h> impluas that tre eachom has aleem up s e th

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When 4.102 g of KNO3 is dissolved in 39.825 g of water in a "coffee-cup calorimeter"...

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