Question

calculate the molairity of a solution containing 4gm of NaoH ( plz complete answer)​

Answer 1

Answer:

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

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 liters

Molarity = 0.1 Mole / 0.5 Litres

=> Molarity = 0.2 M.

Explanation:

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Answer 2

Amount water is taken as 500ml here

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