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A gaseous metallic chloride MCl consists of 20.22% of M by mass. The formula of...

Chemistry
JAMB 2020

A gaseous metallic chloride MCl consists of 20.22% of M by mass. The formula of the chloride is?

[ M = 27, Cl = 35.5]

  • A. MCl
  • B. MCl\(_2\)
  • C. MCl\(_3\)
  • D. M\(_2\)Cl\(_6\)
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Correct Answer: Option C
Explanation
  M Cl
% composition 20.22 79.78
Atomic mass 27 35.5
Mole ratio 20.22 79.78
  27 35.5
  0.75 2.25
Divided 0.75 0.75
  1 3

The formula of the Chloride = MCl\(_3\)

There is an explanation video available below.

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