Express the terms representing the following formulae -i No- of moles of solute Volume of solution in litres -Wii No- of moles of solute Mass of solvent in kg -Xiii No- of moles of component Moles in the solution -Yiv Mass of component Mass of solution -Z

The correct option is B W Molarity; X Molality; Y Mole fraction; Z Mass fractionMolarity = no. of moles of soluteVolume of solution (L)= W Molality = ...

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Byju's Answer

Standard IX

Chemistry

Ways of Representing the Concentration of a Solution

Express the t...

Question

Express the terms representing the following formulae :
(i) $\frac{N o . o f m o l e s o f s o l u t e}{V o l u m e o f s o l u t i o n i n l i t r e s} = (W)$
(ii) $\frac{N o . o f m o l e s o f s o l u t e}{M a s s o f s o l v e n t i n k g} = (X)$
(iii) $\frac{N o . o f m o l e s o f c o m p o n e n t}{M o l e s i n t h e s o l u t i o n} = (Y)$
(iv) $\frac{M a s s o f c o m p o n e n t}{M a s s o f s o l u t i o n} = (Z)$

W- Molality; X- Molarity; Y- Mass fraction; Z- Mole fraction

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W- Molarity; X- Molality; Y- Mass fraction; Z- Mole fraction

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W- Molarity; X- Molality; Y- Mole fraction; Z- Mass fraction

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W- Molality; X- Molarity; Y- Mole fraction; Z- Mass fraction

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Solution

The correct option is B W- Molarity; X- Molality; Y- Mole fraction; Z- Mass fraction
Molarity = $\frac{no. of moles of solute}{Volume of solution (L)} = W$

Molality = $\frac{no. of moles of solute}{Mass of solvent (kg)} = X$

Molefraction = $\frac{no. of moles of component}{Total no. of moles in solution} = Y$

Molarity = $\frac{Mass of component}{Mass of solution} = Z$

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QUESTION 2.3 (I)

Define the following term:

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(I) Molarity (II) Molality
(III) Normality (IV) Mole fraction

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Q. Correct expressions among the following are:

(ρ

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- Mole fraction of solute).

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Express the terms representing the following formulae :(i) No.ofmolesofsoluteVolumeofsolutioninlitres=(W)(ii) No.ofmolesofsoluteMassofsolventinkg=(X)(iii) No.ofmolesofcomponentMolesinthesolution=(Y)(iv) MassofcomponentMassofsolution=(Z)