Multiple choice

A solution contains 20 g of salt in 500 ml of solution. Calculate the concentration in terms of mass by volume percentage.

  1. 0 

  2. 20 

  3. 1 

  4. 4 
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D Correct answer
Explanation

Mass by volume percentage is calculated as (mass of solute in grams / volume of solution in ml) * 100. Here, (20 / 500) * 100 = 4%.

AI explanation

Using the formula for mass by volume percentage, we calculate (mass of solute divided by volume of solution) multiplied by 100. Substituting the given values gives (20 divided by 500) multiplied by 100, which equals 4. The concentration is 4 percent.

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