How much water should be added to 15 , g of s | vedclass

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(A) The concentration of a solution is defined as the mass of the solute divided by the total mass of the solution,multiplied by $100$.Given: Mass of

Vedclass · Accepted Answer

$85$

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(A) The concentration of a solution is defined as the mass of the solute divided by the total mass of the solution,multiplied by $100$.Given: Mass of solute (salt) $= 15 \, g$.Let the mass of water (solvent) to be added be $X \, g$.Total mass of the solution $= 	ext{Mass of solute} + 	ext{Mass of solvent} = 15 + X$.Concentration of the solution $= 15 \%$.Using the formula: $	ext{Concentration} = (	ext{Mass of solute} / 	ext{Total mass of solution}) 	imes 100$.$15 = (15 / (15 + X)) 	imes 100$.Dividing both sides by $15$: $1 = (1 / (15 + X)) 	imes 100$.$15 + X = 100$.$X = 100 - 15 = 85 \, g$.Therefore,$85 \, g$ of water must be added.

How much water should be added to $15 \, g$ of salt to obtain a $15 \%$ salt solution (in $, g$)?

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