I did an exam question and for Phenolphthalein a strong acid and weak base was incorrect as in it couldn't be used as an indicator. The acid was HCL and the base was ammonia, can you please provide assistance?
Hi i keep confusing equivalence point and endpoint of a titration. Is the endpoint where the colour change occurs and the equivalence point where the moles of acid and base are equal in the titration?
end point is the point where the indicator changes colour. the equivalence point is when all of the acid or base gets neutralised and the reaction is complete.
How would the shapes of the pH curves change if you were to have varying concentrations of alkali added to acid? E.g. 0.5M NaOH added to 2M Ethanoic Acid
+Taras Mogetich This will just shift the position of the end point. In the example you gave you would need a lot of NaOH to neutralise 2M Ethanoic Acid. This would result in an end point further right than the equi molar concentrations as shown in the video. Hope this helps!
Buffers are created from a weak acid and it's salt. When you react a weak acid with a strong base you form a salt. You now have a buffer. Hope this helps.
