How do can you find the difference between these acids/bases with only one indicator?
We have 0.1M NaOH, H2SO4, HCl, AlCl3, and Na2CO3. We know the pH of all the solutions (AlCl3 = 2.9, H2SO4 = 0.7, HCl = 1, Na2CO3 = 11.8, NaOH = 13). We only can use 1 indicator to determine what acid/base is which in unmarked bottles. We were thinking of using indigo carmine (11.4-13.0 pH range) to determine what was NaOH and Na2CO3, but then we wouldn't have an indicator if we wanted to do titrations with the NaOH later (we were thinking of doing strong base/strong acid titrations later). Any ideas how to determine these acids/bases apart with only 1 indicator?
1 answer
Use a universal indicator. Look that up on Google.
1 answer