A) 9.4
B) 4.8
C) 3.6
D) 2.4
Correct Answer: A
Solution :
\[C{{H}_{3}}CO{{O}^{-}}+{{H}_{2}}O\]⇌\[C{{H}_{3}}COOH+O{{H}^{-}}\] \\[[O{{H}^{-}}]=c\times h;\,\,\,\,h=\sqrt{\frac{{{K}_{w}}}{{{K}_{a}}}\times c}\]\[=\sqrt{\frac{{{10}^{-14}}}{1.8\times {{10}^{-5}}}\times 1}\] \[=2.35\times {{10}^{-5}}\] \\[pOH=4.62\]; \[pH=9.38\approx 9.4\]You need to login to perform this action.
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