Find out the solubility of Ni OH 2 in 0.1 M NaOH . Given that the ionic product of Ni OH 2 is 2 × 10 – 15 .

Find out the solubility of NiOH2 in 0.1 M NaOH. Given that the ionic product of NiOH2 is 2×10–15.
  1. 2×10–8 M
  2. 1×10–13 M
  3. 1×108 M
  4. 2×10–13 M

Solution

α=1 for NaOH

NaOH(aq)→Na+0.1Maq+OH−0.1Maq

Ni(OH)2s⇌Ni+2s'aq+2OH−0.1+2s'aq

Ionic product =s'0.1+2s'2

2×10−15=s'(0.1)2

s'=2×10−13 M

Asked in: NEET 2020 (Phase 1)

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