How do I make s standard solution of NaOH for a titration?
Corrie writes ….. 1. Work out the mass of 1 mole of NaOH. This is the mass you would have to dissolve to make 1 dm3 of a 1 mol dm-3 solution. 2. Depending on the concentration you want to make up, work out what mass of NaOH you will need to make 1 dm3 of solution. For example, to make 1 dm3 of a 0.2 mol dm-3 solution you would need only 0.2 mole of NaOH. 3. Now decide what volume of NaOH solution you need to make up. Let’s say it is 500 cm3. This is 500/1000 dm3 = 0.5 dm3, so you will need only half of the mass of NaOH you worked out in 2. 4. I presume you know how to make up a standard solution, using a volumetric flask of suitable size. With a strong alkali such as NaOH some special precautions are are needed in handling the solid and the solution, and you need to work quickly when weighing as solid NaOH absorbs water from the air. Risk assessment Before attempting any practical work based on the advice and suggestions on this website, you must do the following. Identify any hazard
