How to prepare 1ppm,100ml Arsenic Solution

How many grams of NaOH should be added to water to prepare 250 ml solution of 2 M NaOH?

Hydrazine N_(2)H_(4) acts as a reducing agent. To prepare 100 ml of 2 N hydrazine solution, the weight required will be

How many mL of a solution of concertration 100 mg Co^(2+) per mL is needed to prepare 10 mL of a solution of concentration 20 mg Co^(2+) per mL .

(a) A solution is prepared by dissolving 3.65 g of HCl in 500 mL of the solution. Calculate the normality of the solution (b) Calculate the volume of this solution required to prepare 250 mL of 0.05 N solution.

1.26 g of hydrated oxalic acid was dissolved in water to prepare 250 ml of solution. Calculate molarity of solution

A solution containing 2.7 gm of urea per 100 ml of the solution is isotonic with a solution of sucrose. How many grams of sucrose are present in 500 mL of the solution ?

How much water is to be added to prepare 0.12 M solutions from 100 mL of 0.3 M solution?

What will be the pH of a solution prepared by mixing 100ml of 0.02M H_(2)SO_(4) with 100ml of 0.05 M HCl solution ?

6.02 xx 10^(21) molecules of urea are present in 100ml of its solution. The concentration of urea solution is

For the coagulation of 100 ml of arsenious sulphide solution, 5ml of 1M NaCl is required. Calculated the flocculation value .