Calculate the molar concentrations of H 3 O + , HSO 4 – , and SO 4 2– in a 0.250 M…
Chemistry · JEE Advanced · NTA Exams — Equilibrium
Calculate the molar concentrations of H3O+, HSO4–, and SO42– in a 0.250 M solution of H2SO4. Assume \(\mathrm{K}_{\mathrm{a}_{1}}\) is very large ; \(\mathrm{K}_{\mathrm{a}_{2}}\) = 1.20 × 10–2.
\[\begin{array}{lll}
& {\left[\mathrm{H}_{3} \mathrm{O}^{+}\right], \mathrm{M}} & {\left[\mathrm{HSO}_{4}^{-}\right], \mathrm{M}} \\
\text { (a) } 0.250 & 0.250 & {\left[\mathrm{SO}_{4}^{2-}\right], \mathrm{M}} \\
\text { (b) } 0.250 & 0.250 & 0.000 \\
\text { (c) } 0.500 & 0.000 & 0.0120 \\
\text { (d) } 0.261 & 0.239 & 0.500 \\
\text { (d) } & 0.0110
\end{array}\]
- a
- b
- c
- d
Answer
(D) d
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