A) \[4\times {{10}^{-8}}\]
B) \[2\times {{10}^{-8}}\]
C) \[4\times {{10}^{-4}}\]
D) \[2\times {{10}^{-4}}\]
Correct Answer: A
Solution :
\[pH=-\log [{{H}^{+}}]\];\[7.4=-\log [{{H}^{+}}]\]; \[[{{H}^{+}}]=4\times {{10}^{-8}}M\]You need to login to perform this action.
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