Question

A solution contain 60g
water. Calcollare
mass by mass Percentage of
OF comman salt is 500g
the concennraon in derma)
the
solution,​

Answer 1

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A solution contains 60g of common salt in 240g of water. calculate the concentration in term of mass by mass percentage of solution ?

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Mass of Solute = 60g

Mass of Solvent = 240g

Mass of Solution = 240 + 60 = 300g

We know

$\sf{\green{Mass\: Percentage =\dfrac{Mass\:of\:Solute}{Mass\:of\: Solution} × 100}}$

$\sf{→ \dfrac{60}{300} × 100}$

Mass Percentage = 20%

Answer 2

mass of solute (common salt ) = 60g

mass of solvent (water) = 350g

solution :- mass of solution = mass of solute +

mass of solvent

= ( 60 + 350 ) g

= 410 g

concentration of solution = mass of solute / mass of solution × 100

= 60/410 ×100

=14.63 %