Calculate the molarity of sodiumhydrocside solution by desoving 4g sod

1.	Calculate the molarity of sodiumhydrocside solution by desoving 4g sodiumhydrocside in water to form 250ml solution .......fast its argent..........
Answer» Molarity = Number of moles of solute / Volume of SOLUTION in liters Number of moles of solute = GIVEN MASS / MOLAR mass Given mass = 4 g Molar mass of solute = NaOH = 23 + 16 + 1 = 40 g Number of moles = 4 g / 40 g = 0.1 mole Volume of solution = 250 ml = 0.25 liters => Molarity = 0.1 / 0.25 = 100 / 25 = 0.4 M Hence molarity of that solution is 0.4 M.

Calculate the molarity of sodiumhydrocside solution by desoving 4g sodiumhydrocside in water to form 250ml solution .......fast its argent..........

Answer»

Molarity = Number of moles of solute / Volume of SOLUTION in liters

Number of moles of solute = GIVEN MASS / MOLAR mass

Given mass = 4 g

Molar mass of solute = NaOH = 23 + 16 + 1 = 40 g

Number of moles = 4 g / 40 g = 0.1 mole

Volume of solution = 250 ml = 0.25 liters

=> Molarity = 0.1 / 0.25 = 100 / 25 = 0.4 M

Hence molarity of that solution is 0.4 M.