posted by osah felix .
what mass of NaOH would be dissolved in 1dm3 of water to obtain 0.5 moles of the NaOH solution
a solution which contians one mole of the mass of; the compound in one dm3 of the solution is called what?
a solution which contains one mole of a solute dissolved in one liter is a one Molar solution.
For you first question, dissolve 1/2 mole into the solvent. That, as I recall is about 20grams of NaOH. Check it.