Home
Class 11
CHEMISTRY
Anhydrous AlCl(3) is covalent. From the ...

Anhydrous `AlCl_(3)` is covalent. From the date given below, predict whether it would remain covalent or become ionic in aqueous solution. (Ionisation energy for `Al` is `1537 kJ mol^(-1)`)
`Delta_("hydration") for Al^(3+) = - 4665 kJ mol^(-1)`
`Delta_("hydration") for Cl^(Ө) = - 381 kJ mol^-1`.

Text Solution

Verified by Experts

`Delta_("hyd")H^(ɵ) AlCl_(3) = Delta_("hyd")H^(ɵ)` for `Al^(3+) +3("hyd"H^(ɵ)) "for" Cl^(ɵ))`
`= -4665 + 3 (-380)`
`= -5808 kJ mol^(-1)`
The magnitude of hydration energy of `AlCl_(3)` is greater than `IE_(1)`, hence `AlCl_(3)` is ionic in aqueous solution.
Promotional Banner

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Ex 1.3 (Objective)|8 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Ex 1.3 (Multiple Correct)|5 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Ex 1.2(Objective)|22 Videos

  • P-BLOCK GROUP 14 - CARBON FAMILY

    CENGAGE CHEMISTRY|Exercise Exercises Archives (Subjective)|9 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise Assertion Reasoning Type|5 Videos

Similar Questions

Explore conceptually related problems

Anhydrous AlCl_(3) is covalent, From the data given below, predict whether if would remain covelent or become ionic in aqueous sobittion [Inization energy for Al =- 5137 kJ mol ^(-1), Delta H_("Hydration") for Al ^(3+) =- 4665 kJ mol ^(-1), for Cl =-381 kJ mol ^(-1) ]

Ionisation energy of A1=5137KJmol^(-1)(DeltaH) hydration of Al^(3+)=-4665KJmol^(-1).(DeltaH)_(hydration) for Cl^(-)=-381KJmol^(-1) . Which of the following statement is correct?