chloride ion of a metal contains 71% cl by weight and the vapour density of it is 50. the atomic mass of the metal will be ?
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Answer:
W=29.
Explanation:
Say compound is MCly and weight of atom is W. ( By cross multiplication method of charge of ions you can easily figure it out that compound can be written in MCly form).
Molecular weight = 2x vapour density= 2x50. = 100g
Weight of Chlorine is 71% by weight so,
yx35.5 =71 so, y=2
Now we have
W + 35.5y =100
W+ 71 =100
W= 29.
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