Question

Solve the following :

1. 4.0 g of NaOH  is dissolved in 150 g of water. Calculate the mass percentage of sodium hydroxide in the solution.                      02 Ans :








2. A solution contains 5 ml of alcohol dissolved in 0.2 L of Water. Calculate the concentration of solution in terms of volume percentage.          03

Ans:   





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Answer 1

Answer:

solution contains 5 mL of alcohol mixed with 75 mL of water. Calculate the concentration of the solution in terms of volume percent.

Solution :

Concentration of solution =

<br> Volume of alcohol = 5 mL <br> Volume of solution = (5 + 75) = 80 mL <br> Concentration of solution =