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What is the concentration of \(H ^{+}\)ion in mole's per \(dm 3\) of the solution ...

What is the concentration of \(H ^{+}\)ion in mole's per \(dm 3\) of the solution of _____________
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  • A \(4.0 \times 10^{-2}\)
  • B \(4.0 \times 10^{-3}\)
  • C \(4.0 \times 10^{-4}\)
  • D \(4.0 \times 10^{-6}\)
Correct Answer: Option B
Explanation:
\(\quad pH -\log \left[ H ^{+}\right]\)
\(4.398=-\log \left[ H ^{+}\right]\)
\(\left[ H ^{+}\right]=\)antilog \((-4.398)\)

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