a solution is obtained by mixing 300g of 25% solution and 400g of 40% solution by mass. Calculate the mass percentage of the resulting solution.
what should be changed in this question to solve it as
25% of x=300 and 40% of x =400
inspite of solving 25% of 300 and 40% of 400

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Solution

Total mass = 300 + 400 = 700gms

Individual mass of solute = 25% in 300 gm = 25/100 x 300 = 75gms
and for 400 gms = 40% of 400 = 40/100 x 400 = 160 gms

Thus total mass of solute = 75 +160 = 235 g

Mass percent = 235/700 x 100 = 33.57 %

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QUESTION 2.7

A solution is obtained by mixing 300 g of $25 %$ solution and 400 g of $40 %$ solution by mass. Calculate the mass percentage of the resulting solution.

Q. A solution is obtained by mixing

300 g

25

% solution and

400 g

40

% solution by mass. Calculate the mass percentage of the resulting solution

Calculate the percentage composition in terms of mass of a
solution obtained by mixing 300 g of a 25% and 400 g of a 40% solution by mass.

Q. The percentage (by mass) concentration of a solution obtained by mixing

300

g of a

25

% (solution

I

) and

400

g of a

40

% (solution

I I

) by mass is (as the nearest integer):

Q. Calculate the percentage composition of the solute in % (w/w) present in a solution obtained by mixing 400 g of a 25% (w/w) solution and 500 g of a 40% (w/w) solution.

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a solution is obtained by mixing 300g of 25% solution and 400g of 40% solution by mass. Calculate the mass percentage of the resulting solution.what should be changed in this question to solve it as25% of x=300 and 40% of x =400inspite of solving 25% of 300 and 40% of 400

Total mass = 300 + 400 = 700gms Individual mass of solute = 25% in 300 gm = 25/100 x 300 = 75gms and for 400 gms = 40% of 400 = 40/100 x 400 = 160 gms Thus total mass of solute = 75 +160 = 235 g Mass percent = 235/700 x 100 = 33.57 %

a solution is obtained by mixing 300g of 25% solution and 400g of 40% solution by mass. Calculate the mass percentage of the resulting solution.
what should be changed in this question to solve it as
25% of x=300 and 40% of x =400
inspite of solving 25% of 300 and 40% of 400

Total mass = 300 + 400 = 700gms

Individual mass of solute = 25% in 300 gm = 25/100 x 300 = 75gms
and for 400 gms = 40% of 400 = 40/100 x 400 = 160 gms

Thus total mass of solute = 75 +160 = 235 g

Mass percent = 235/700 x 100 = 33.57 %