Question

To prepare a 25 % w/w aqueous solution of iron sulphate find out required amount to be added in 100 g of water at room temperature

Answer 1

Answer:

Pour it into a graduated cylinder or volumetric flask containing about 80ml of water. Once the sodium chloride has dissolved completely (swirl the flask gently if necessary), add water to bring the volume up to the final 100 ml. A 10% of alcohol solution by volume has ten ml of alcohol dissolved in 100ml of solution.