A mixture of weak acid is \[0.1\text{ }M\] in \[HCOOH\] \[({{K}_{a}}=1.8\times {{10}^{-4}})\] and \[0.1\text{ }M\] in \[HOCN\,\,({{K}_{a}}=3.1\times {{10}^{-4}})\] Hence, \[[{{H}_{3}}{{O}^{\oplus }}]\] is

A mixture of weak acid is \[0.1\text{ }M\] in \[HCOOH\] \[({{K}_{a}}=1

1.	A mixture of weak acid is \[0.1\text{ }M\] in \[HCOOH\] \[({{K}_{a}}=1.8\times {{10}^{-4}})\] and \[0.1\text{ }M\] in \[HOCN\,\,({{K}_{a}}=3.1\times {{10}^{-4}})\] Hence, \[[{{H}_{3}}{{O}^{\oplus }}]\] is
A.	\[7.0\times {{10}^{-3}}M\]
B.	\[4.1\times {{10}^{-4}}M\]
C.	\[0.20M\]
D.	\[4.1\times {{10}^{-3}}M\]
Answer» B. \[4.1\times {{10}^{-4}}M\]

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A mixture of weak acid is \[0.1\text{ }M\] in \[HCOOH\] \[({{K}_{a}}=1.8\times {{10}^{-4}})\] and \[0.1\text{ }M\] in \[HOCN\,\,({{K}_{a}}=3.1\times {{10}^{-4}})\] Hence, \[[{{H}_{3}}{{O}^{\oplus }}]\] is

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