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Chemistry - Concentration Terms Question with Solution | TestHub

ChemistryConcentration TermsConcentration termHard2 minPYQ_2009

ChemistryHardsingle choice

$1.5 g$ of $CdCl_{2}$ was found to contain $0.9 g$ of $Cd$ . Calculate the atomic weight of Cd.

Options:

Answer:

Solution:

Masspercent of $Cdin CdCl_{2}$ $= \frac{0.9}{1.5} \times 100 = 60%$ $∴$ Mass percent of $Cl_{2}$ in $CdCl_{2}$ $= 100 - 60 = 40%$ $∵ 40%$ part $(Cl_{2})$ has atomic weight $= 2 \times 35.5 = 71.0$ $∴ 60%$ part (Cd) has atomic weight $= \frac{71.0 \times 60}{40} = 106.5$

Stream:VITEEESubject:ChemistryTopic:Concentration TermsSubtopic:Concentration term

⏱ 2mℹ️ Source: PYQ_2009

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