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Heat of Reaction

If the heat o...

Question

If the heat of dissolution of $a n . C u S O_{4}$ and $C u S O_{4} .5 H_{2} O$ are (-15.89) kcal and 2.80 kcal respectively. Calculate the heat of hydration of $C u S O_{4}$ :

A

-13.09 kcal

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B

-18.69 kcal

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C

13.09 kcal

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D

18.69 kcal

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Solution

The correct option is C 13.09 kcal
$C u S O_{4 (s)} + a q \to C u S O_{4 (a q)} Δ H = 15.89 k c a l C u S O_{4} .5 H_{2} O_{(s)} + a q \to C u S O_{4 (a q)} Δ H = 2.80 k c a l - ---------------------------------------------------------- - C u S O_{4 (s)} + a q \to C u S O_{4} .5 H_{2} O_{(a q)} Δ H = ?$
Subtracting equation 2 from equation 1 gives 13.09 kcal.

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Similar questions

Q. If the heat of dissolution of

a n . C u S O_{4}

C u S O_{4} .5 H_{2} O

are (-15.89) kcal and 2.80 kcal respectively. Calculate the heat of hydration of

C u S O_{4}

:

Q. The heat of solution of anhydrous

C u S O_{4}

C u S O_{4} . 5 H_{2} O

are - 15.89 and 2.80

K c a l m o l^{- 1}

respectively. The heat of hydration of anhydrous

C u S O_{4}

Q. The heat of solution of anhydrous

C u S O_{4}

C u S O_{4} .5 H_{2} O

are - 15.89 and 2.80

K c a l {m o l}_{- 1}

respective. What will be heat of hydration of anhydrous

C u S O_{4}

Q. Heat of solution of anhydrous

C u S O_{4}

is -15.9 kcal and heat of hydration of anhydrous

C u S O_{4}

is -18.9 kcal. The heat of solution of

C u S O_{4} .5 H_{2} O

Q. The enthalpies of solution of anhydrous

C u {S O}_{4}

C u {S O}_{4} .5 H_{2} O

- 15.89

2.80

k c a l / m o l

respectively. The enthalpy of hydration of

C u {S O}_{4}

C u {S O}_{4} .5 H_{2} O

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