Question

a solution is prepared by adding 40g of sugar in 100g of water. calculate the concentration regarding mass by mass percentage of solution

Answer 1

Given -

• Mass of Solute(Sugar) = 40g
• Mass of Solvent(Water) = 100g
• Mass of Solution = ?
________________________________
We know that,

• Mass of Solution = Mass of (Solute + Solvent)

Also,

• Mass % of Solute =

$\frac{Mass \: of \: Solute}{Mass \: of \: Solution} \times 100$
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Now,

Mass of Solution = (100 + 40)g = 140g

Mass % of Solute =
$\\ = > \frac{40}{140} \times 100 \\ \\ = > \frac{4 \times 100}{140}$

$= > \frac{400}{14} \\ \\ = > 28.57$

Hence, Mass % of Solute is 28.57% .

Answer 2

Answer:

Mass of solute (sugar) = 40g

Mass of solvent (water) = 100g

Mass of solution = mass of (solute + solvent)

Mass % of solute = mass of solute × 100

Mass of solvent

So, Mass of solution = (100 + 40)g = 140g

Mass %of solute = 40 ×100

140

= 4 × 100

14

= 400

14

= 28.57 %

Hence, Mass %of solute is 28.57 %

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