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How many moles of HCl will be required to react with potassium heptaoxodichromate (VI) to produce...

Chemistry
JAMB 2000

How many moles of HCl will be required to react with potassium heptaoxodichromate (VI) to produce 3 moles of chlorine?

  • A. 14
  • B. 12
  • C. 11
  • D. 10
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Correct Answer: Option A
Explanation

K\(_{2}\)Cr\(_{2}\)O\(_{7}\) + HCl  → Cl\(_{2}\) + KCl + CrCl\(_{3}\) + H\(_{2}\)O

Balancing the equation, we have

K\(_{2}\)Cr\(_{2}\)O\(_{7}\) + 14HCl → 3Cl\(_{2}\) + 2KCl + 2CrCl\(_{3}\) + 7H\(_{2}\)O

There is an explanation video available below.


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Explanation Video

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