MCQ
Given a $0.1\,M$ solution of each of the following. Which solution has the lowest $pH$
- A$NaHS{O_4}$
- B$N{H_4}Cl$
- ✓$HCl$
- D$N{H_3}$
${H^ + } = {10^{ - 1}}$
$pH = - \log \,\,[{H^ + }]$ $ = - \log \,\,[{10^{ - 1}}]$; $pH = 1$.
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$2KCl{O_4}(s) \rightleftharpoons 2KCl(s) + 3{O_2}(g)$
If $\Delta {H^o} = 25\,kcal/mol$ and $\Delta {S^o} = 50\,cal/K$, at what temperature equilibrium will be established in the container. (Ignore variation of $\Delta {H^o}$ and $\Delta {S^o}$ with temperature.)......$K$