Question

9. One litre of water is evaporated from a 6 litre solution containing 4% sugar. Find the percentage of sugar in
the remaining solution.​

Answer 1

Answer:

4.8%

Step-by-step explanation:

One litre of water is evaporated from 6 litres of solution containing 4% of sugar.

Sugar solution = 6 litres

Concentration of sugar is 4% which is

4/100 × 6 litres

= 0.24

After 1 litre water has evaporated, the same amount of sugar will be remaining in the solution, which will now reduced to

6 litres - 1 litre = 5 litre

so 0.24 sugar will now be in 5 litre solution

Sugar concentration now is 0.24 / 5 = 0.048

Sugar concentration in percent = 0.048 × 100

Sugar concentration in percent = 4.8 %