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Ionization Enthalpy

To increase s...

Question

To increase significantly the concentration of free $Z n^{2 +}$ ion in a solution of the complex ion ${[Z n {(N H_{3})}_{4}]}^{2 +}$ , add some ________ to the solution.
${Z n^{2 +}}_{(a q)} + 4 N H_{3} ⇌ {[Z n {(N H_{3})}_{4}]}^{2 +}_{(a q)}$

H_{2} O

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H C l_{(a q)}

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N H_{3 (a q)}

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N H_{4} C l_{(a q)}

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Solution

The correct option is B $H C l_{(a q)}$

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Similar questions

Z n^{2 +}

Z n^{2 +} (a q) + 4 N H_{3} (a q) ⇌ [Z n (N H_{3})_{4}]^{2 +} (a q)

Z n^{2 +}

N H_{3}

[Z n (N H_{3})_{4}]^{2 +}

3 \times 10^{9}

298

Z n^{2 +} + 4 N H_{3} ⇌ [Z n (N H_{3})_{4}]^{2 +}

10^{9}

E_{[Z n (N H_{3})_{4}]^{2 +} / [Z n^{2 +} + 4 N H_{3}]}^{o} = - 1.03

E_{Z n / Z n^{2 +}}^{o}

298 K

Z n^{2 +} + 4 N H_{3} ⇌ [Z n (N H_{3})_{4}]^{2}

10^{o}

E_{[Z n (N H_{3})^{4}]^{2} / [Z n, 4 N H_{3}]}^{o} = - 1.03 V

E_{Z n / Z n^{2 +}}^{o}

N H_{3} (g) + H C l (g) \to N H_{4} C l (s)

N H_{3} (g) + a q \to N H_{3} (a q),

Δ H = - 8.4 K . C a l .

H C l (g) + a q \to H C l (a q),

Δ H = - 17.3 K . C a l .

N H_{3} (a q) + H C l (a q) \to N H_{4} C l (a q), Δ H = - 12.5 K . C a l s .

N H_{4} C l (s) + a q \to N H_{4} C l (a q), Δ H = + 3.9 K . C a l .

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