Question

Which indicators suitable for following titrations
NaOH + HCL->.........
NH4OH + HCL ............
CH3 COOH+NaOH ..............​

Answer 1

Answer:

For the first reaction any indicator can be used like methylene blue, etc.

For the second reaction

indicator like Methyl orange should be used since it's pH working range is somewhere around 4.5 - 6 which is slightly acidic medium

For the third reaction, phenolphthalein should be used since it's working pH range is around 9-13 which is basic.