Question

A solution is prepared by dissolving 4g of naoh to give 500 ml of .calculate the molarity of solution.

Answer 1

Hey mate !!

Here's the answer !!

Molarity = Number of moles / Amount of solution ( In litres )

NaOH molar mass = 23 + 16 + 1 = 40 g

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

Amount of water = 0.5 litres

Molarity = 0.1 Mole / 0.5 Litres

=> Molarity = 0.2 M

Hope my answer helps !!

Cheers !!

Answer 2

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