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alukav5142 [94]
2 years ago
12

Write anodic and cathodic reaction involve in fuel cell

Chemistry
1 answer:
Sveta_85 [38]2 years ago
5 0

Cell reactions in a fuel cell:

Oxidation at the anode (-): Oxidation of hydrogen gas to water occurs at the anode. Reduction at the cathode (+): Reduction of oxygen gas to OH ions occurs at the cathode.

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What substance would you add to KF(aq) to form a buffer solution? View Available Hint(s) What substance would you add to to form
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<h3>Answer</h3>

HF

<h3>Explanation</h3>

A buffer solution contains <em>a weak acid</em> and<em> its conjugate base</em>. The two species shall have a similar concentration in the solution. It's also possible for <em>a weak base</em> and <em>its conjugate acid</em> to form a buffer solution.

The KF solution already contains large number of \text{F}^{-} ions. The objective is to thus find its conjugate acid or base.

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\text{H}^{+} \; (aq) + \text{F}^{-} \; (aq) \rightleftharpoons \text{HF}\; (aq)

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