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(Solved):   Methanoic acid, also known as formic acid, is partly responsible for the characteristic it ...



Methanoic acid, also known as formic acid, is partly responsible for the characteristic itchy rash produced by the leaves of

 

Methanoic acid, also known as formic acid, is partly responsible for the characteristic itchy rash produced by the leaves of the stinging nettle plant. Calculate the \( \mathrm{pH} \) of \( 0.150 \mathrm{~mol} / \mathrm{L} \) methanoic acid. The \( \mathrm{K}_{\mathrm{a}}=1.8 \times 10^{-4} \) \( (5 \) marks \( T / 1) \)


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HCOOH + H2O H3O+ + HCOO- Initial concentration (mol/L) 0.150 0 0 Change in concentration (mol
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