PREPARATION OF SOLUTIONS

ByMr. M. Shivanadha Reddy

Solution is a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).

Solution = solute + solvent

1.How many grams of Dextrose would there be in 500mL of 5% Dextrose?

1.How many grams of Dextrose would there be in 100mL of 25% Dextrose?

1. How will you prepare 10% of Dettol solution?

2. How will you prepare 750 ml of 5% Savlon solution

Formula for Calculation of solutions

Desired strength= strength of the solution required.Stock strength = strength of the concentrated solution what we haveVolume required = Amount of solution to be prepared

Desired Strength × Volume RequiredAmount of solute required = Stock Strength

Water Required = Volume Required − Solute Required

How will you prepare 2000ml of 1: 5000 potassium permanganate solution

1:5000 means that 1g of potassium permanganate is dissolved in 5000mL.Ans: 1g = 5000mL 1000mg = 5000mL

? mg =2000ml

1000mgx2000ml = ? mgx5000ml 1000mgx2000ml = ?mg 5000ml400 mg to be mixed with 2000 ml of water

to prepare 2000ml of 1:5000 solution.