Question

Questions If we the point? had used an indicator instead of a titration curve, we would have found the endpoint of titration. What is the difference between and indicator endpoint and the equivalence 1. If the concentration of the HCI titrant was wrong during your experiment, which of your values would also be incorrect, the molar mass or the pK, or both? Explain. 2.
this is chemistry lab, Analysis of Unknown Base sample :Using Titation Curve to Deterime formula Weight and Pk

Answer 1

1st question

end point	equivalence point
Point where the indicator changes colour	The point at which the titrant is chemically equivalent to the analyte in the sample
Comes after the equivalence point	Comes before the endpoint

2nd question

both the molar mass and Pka values will be wrong

this can be explained as follows

1) if the concentration of HCl is wrong we will end up getting wrong end point value which will lead to wrong molar mass of the unknown

2)since the concentration itself is wrong concentration of H+ ion will also be wrong hence pH and Pka will also be wrong