# chemistry - science

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calculate molarity of NaOHin the solution prepared by dissolving its 4g in enough water to form 250ml of this solution ?

• chemistry - science -

mols NaOH = grams/molar mass
The M = moles NaOH/L soln.

• chemistry - science -

molarity=moles of solute/volume of whole solution in litres
so the mass of Na/molar mass of NaOH all divided by .250Litres

4g/40g divided by .250 litres is .4 M.

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