MCQ
Which is a buffer solution
- ✓$C{H_3}COOH + C{H_3}COONa$
- B$C{H_3}COOH + C{H_3}COON{H_4}$
- C$C{H_3}COOH + N{H_4}Cl$
- D$NaOH + NaCl$
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$4B(s) + 3O_2\,(g) \rightarrow 2B_2O_3\,(g)$ ; $E^o_{cell} = 1.433$ $volt$ What is molar entropy (in $J/K$) of oxygen gas
Given ${\left( {{\Delta _f}{H^o}} \right)_{{B_2}{O_3}}}\left( g \right) = - 840\,\frac{{KJ}}{{mol}}$
${\left( {S_m^o} \right)_{{B_2}{O_3}}} \left( g \right) = 280J/K - mol$
${{(S_{m}^{o})}_{B}}\,\,\left( s \right)=10\,J/K-mol$
