Question

A solution contains 50g of sugar in 350 gof
water. Calculate the concentration of solution
in terms of mass by mass percent of the
solution. class 9


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Answer 1

Answer:

• Concentration of solution in terms of mass by mass percent is 12.5 %

Explanation:

Given

• Mass of sugar (solute) = 50 g
• Mass of water, (Solvent) = 350 g

To find

• Concentration of solution in terms of mass by mass percent

Formula required

• Formula for mass by mass percentage of compound

       Mass percent = (mass of solute / mass of solution) × 100 %

Solution

Since,

• → mass of solution = mass of solvent + mass of solute

therefore,

• → Mass of sugar solution = mass of sugar + mass of water
• → Mass of sugar solution = (  50 g ) + ( 350 g )
• → Mass of sugar solution = 400 g

• Now, using formula for mass by mass percentage
• → Mass percent = ( mass of solute / mass of solution ) × 100 %
• → Mass percent = ( mass of sugar / mass of sugar solution ) × 100 %
• → Mass percent = ( 50 ) / ( 400 ) × 100 %
• → Mass percent = 50 / 4  %
• → Mass percent = 12.5 %

Therefore,

• Concentration of solution in terms of mass by mass percent of the solution is 12.5 %.

Answer 2

Answer:

mass of solute/mass of solution

=50/350×100

=1/7 is the ratio

= 1/7×100

=14.28%

thus above is the concentration

hope you got the answer!!!