This is what we have to do for our chem prac 1) Dissolve 2g of NaOH in 500 mL of water to make a solution 2) Since NaOH cannot be used directly as standard solution titrate it with a standard oxalic acid solution 3) Calculate concentration of NaOH 4) Now use this standardised solution of NaOH to titrate a solution of acetic acid. My problem is that I did make a NaOH solution but accidentally spilled most of it. I have about 200 mL left. Unfortunately it's too hard to make a new NaOH solution at this moment. So my question is If I dilute whatever NaOH solution I have left with say about 200 mL of water and then titrate it to find it's concentration. Then use this new NaOH solution to titrate acetic acid. Will I get messed up results for my acetic acid titration? Is it unwise to do this and I should just try and somehow obtain a new NaOH solution?