Q. What is the $\left[ OH ^{-}\right]$concentration of a $0.04 M$ solution of $CH _{3} COONa$ ? [$K _{ a }$ of $CH _{3} COONa =2\times 10^{-5}, \log 2=0.30, \log 5=0.69,10^{0.7} \cong 5$]
NTA AbhyasNTA Abhyas 2020Equilibrium
Solution: