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A solution contains 40 g of common salt in 320 g of water. The concentration in terms of mass by mass percentage of the solution.
  • a)
    11.1%
  • b)
    12.5%
  • c)
    14.28%
  • d)
    None of the above
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A solution contains 40 g of common salt in 320 g of water. The concen...
Mass of solute (salt) = 40 g
Mass of solvent (water) = 320 g
We know,
Mass of solution = Mass of solute + Mass of solvent
= 40 g + 320 g
= 360 g
mass percentage of solution mass percentage of solution = (40/360) x 100 = 11.11%
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Most Upvoted Answer
A solution contains 40 g of common salt in 320 g of water. The concen...
To find the mass by mass percentage of a solution, we need to determine the amount of solute (common salt) in relation to the total mass of the solution.

Given information:
Mass of common salt (solute) = 40 g
Mass of water (solvent) = 320 g

The total mass of the solution is the sum of the mass of the solute and solvent:
Total mass of solution = Mass of common salt + Mass of water
Total mass of solution = 40 g + 320 g
Total mass of solution = 360 g

The mass by mass percentage of the solution can be calculated using the following formula:
Mass by mass percentage = (Mass of solute / Total mass of solution) x 100

Substituting the given values into the formula:
Mass by mass percentage = (40 g / 360 g) x 100
Mass by mass percentage ≈ 11.1%

Therefore, the concentration of the solution in terms of mass by mass percentage is approximately 11.1%.
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A solution contains 40 g of common salt in 320 g of water. The concentration in terms of mass by mass percentage of the solution.a)11.1%b)12.5%c)14.28%d)None of the aboveCorrect answer is option 'A'. Can you explain this answer?
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