(C) Let the number of $M^{2+}$ ions be $x$. Then the number of $M^{3+}$ ions is $(0.83 - x)$.Since the compound is electrically neutral,the total posi

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(C) Let the number of $M^{2+}$ ions be $x$. Then the number of $M^{3+}$ ions is $(0.83 - x)$.Since the compound is electrically neutral,the total positive charge must equal the total negative charge:$2x + 3(0.83 - x) = 2$$2x + 2.49 - 3x = 2$$-x = -0.49$$x = 0.49$Thus,the number of $M^{2+}$ ions is $0.49$.The percentage of $M^{2+}$ ions is given by:$\% M^{2+} = \frac{0.49}{0.83} \times 100 \approx 59.036\%$Rounding to the nearest integer,we get $59\%$.

Class 11 Chemistry Some Basic Concepts of Chemistry Chemical stoichiometry

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$A$ sample of a metal oxide has the formula $M_{0.83}O_{1.00}$. The metal $M$ can exist in two oxidation states,$+2$ and $+3$. In the sample of $M_{0.83}O_{1.00}$,the percentage of metal ions existing in the $+2$ oxidation state is $.........\%$ (nearest integer).

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Some Basic Concepts of Chemistry

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Chemical stoichiometry

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$23 \ g$ of $Na$ will react with methyl alcohol to give:

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What is the percentage atom economy when the formula weight of the product obtained is $70 \ u$ and the sum of the formula weights of the reactants is $140 \ u$ (in $\%$)?

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If the enthalpy of combustion of anhydrous oxalic acid is $x \, kcal \, mol^{-1}$,then how much heat in $kcal$ will be produced by the combustion of $2 \, g$ of oxalic acid?

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The molarity of liquid $HCl$ with a density equal to $1.17 \ g/cc$ is: (in $M$)

MediumAIPMT 2001

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What mass of $95 \%$ pure $CaCO_3$ will be required to neutralise $50 \ mL$ of $0.5 \ M \ HCl$ solution according to the following reaction? (In $g$)
$CaCO_{3(s)} + 2HCl_{(aq)} \rightarrow CaCl_{2(aq)} + CO_{2(g)} + H_2O_{(l)}$
[Calculate up to the second decimal place]

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$A$ sample of a metal oxide has the formula $M_{0.83}O_{1.00}$. The metal $M$ can exist in two oxidation states,$+2$ and $+3$. In the sample of $M_{0.83}O_{1.00}$,the percentage of metal ions existing in the $+2$ oxidation state is $.........\%$ (nearest integer).

Similar Questions

$23 \ g$ of $Na$ will react with methyl alcohol to give:

What is the percentage atom economy when the formula weight of the product obtained is $70 \ u$ and the sum of the formula weights of the reactants is $140 \ u$ (in $\%$)?

If the enthalpy of combustion of anhydrous oxalic acid is $x \, kcal \, mol^{-1}$,then how much heat in $kcal$ will be produced by the combustion of $2 \, g$ of oxalic acid?

The molarity of liquid $HCl$ with a density equal to $1.17 \ g/cc$ is: (in $M$)

What mass of $95 \%$ pure $CaCO_3$ will be required to neutralise $50 \ mL$ of $0.5 \ M \ HCl$ solution according to the following reaction? (In $g$)$CaCO_{3(s)} + 2HCl_{(aq)} \rightarrow CaCl_{2(aq)} + CO_{2(g)} + H_2O_{(l)}$[Calculate up to the second decimal place]

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What mass of $95 \%$ pure $CaCO_3$ will be required to neutralise $50 \ mL$ of $0.5 \ M \ HCl$ solution according to the following reaction? (In $g$)
$CaCO_{3(s)} + 2HCl_{(aq)} \rightarrow CaCl_{2(aq)} + CO_{2(g)} + H_2O_{(l)}$
[Calculate up to the second decimal place]