Question

Sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution contains 567 g of NaOH(s) per liter of solution. Calculate the molarity of this saturated NaOH(aq) solution

Answer 1

14.2M

Step-by-step explanation:

Amount= Concentration × Volume

But volume is 1 litre as stated in the question

And amount = mass/ molar mass

Molar mass of NaOH= 23+16+1=40gmol-1

Amount of NaOH= 567/40=14.2moles

But concentration= amount/volume

Hence molarity= 14.2/1 = 14.2M