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Hydration Enthalpy and Lattice Enthalpy (Group 2)

On heating 1....

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On heating 1.763 g of hydrated BaCi2 to drynes1.505 g of anhydrous salt remained. Hence theformula of the hydrate is (Atomic weight ofBa 137)3(2) BaCl2-H20(1) BaC12 2 H2O(3) BaCl2 2H2O(4) BaCl2 5H2O

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Q. On heating 1.763g of hydrated

B a C l_{2}

to dryness 1.505g of an hydrous salt remained. What is the formula of hydrate ?

Q. The enthalpy change of solution of

B a C l_{2} \cdot 2 H_{2} O

B a C l_{2}

8.8

- 20.6

kJ/mol respectively. Calculator enthalpy change of hydration of

B a C l_{2}

B a C l_{2} \cdot 2 H_{2} O

Q. Enthalpies of solution of

B a C l_{2} .2 H_{2} O

B a C l_{2}

8.8

- 20.6 k J m o l^{- 1}

respectively. Calculate the heat of hydration of

B a C l_{2}

B a {C l}_{2} .2 H_{2} O

.

Q. The enthalpy of solution of

B a C l_{2} (s)

B a C l_{2} .2 H_{2} O (s)

are – 20.6 and 8.8 kJ

m o l^{- 1}

respectively, the enthalpy change for the hydration of

B a C l_{2} (s)

Q. The enthalpy of solution of

B a C l_{2} (s)

B a C l_{2} .2 H_{2} O (s)

are – 20.6 and 8.8 kJ

m o l^{- 1}

respectively, the enthalpy change for the hydration of

B a C l_{2} (s)

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