COMEDK · Chemistry · 8. Ionic Equilibrium
The \(\mathrm{pH}\) of a mixture of \(10 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{H}_{2} \mathrm{SO}_{4}\). \(5 \mathrm{~mL}\) of \(0.2 \mathrm{~N} \mathrm{HCl}\) and \(5 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{Ca}(\mathrm{OH})_{2}\) is
- A 1
- B \(0.5\)
- C 0
- D \(1.5\)
Answer & Solution
Correct Answer
(A) 1
Step-by-step Solution
Detailed explanation
Millimoles of \(\mathrm{H}^{+}=N_{1} V_{1}+N_{2} V_{2}\) \(10 \times 0.1 \times 2+5 \times 0.2=2+1=3\) Millimoles of \(\mathrm{OH}^{-}=\mathrm{N}_{3} V_{3}\) \(=0.1 \times 5 \times 2=1\) \(\therefore\) After neutralisation millimoles of \(\mathrm{H}^{+}\)left \(=3-1=2\)…
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