HydrogenmediumNUMERICAL

When obtaining exceptionally high-purity dihydrogen via the electrolysis of warm aqueous barium hydrHydrogen Chemistry Question

Question

When obtaining exceptionally high-purity dihydrogen via the electrolysis of warm aqueous barium hydroxide solution using nickel electrodes, the guaranteed purity of the hydrogen obtained is greater than $99.9x\%$. What is the integer value of $x$?

Answer: 5

💡 Solution & Explanation

Dihydrogen of high purity ($>99.95\%$) is obtained by electrolysing warm aqueous barium hydroxide solution between nickel electrodes. Therefore, $x = 5$.

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