The percentage ( by weight ) of sodium hydroxide in a 1.25 molal NaOH solution is

The density of 3 M sodium of thiosulphate solution (Na_(2)S_(2)O_(3)) is 1.25 g mL^(-1) . Calculate a. The precentage by weight of sodium thiosulphate. b. The mole fraction of sodium thiosulphate. c. The molalities of Na^(o+) and S_(2)O_(3)^(2-) ions.

Calculate the weight of sodium hydroxide present in 200ml of 0.5 M solution.

The pH of an aqueous solution of sodium hydroxide is

Calculate the concentration (in percentage by weight) of a solution obtained by mixing 300 g 25% by weight solution of NH_(4)Cl and 150 g of 40% by weight solution of NH_(4)Cl

How many grams of 40% pure sodium hydroxide is dissolved in 0.5 M, 250 ml NaOH solution?

Calculate the amount of sodium hydroxide present in 100 mL of 0.1(M) NaOH solution.