How would the observed molarity of your experiment be affected by the following circumstances. (i.e. would it be higher than the true value, lwer than the ture vaule or remain unchaged?)
a) the potassium hydrogen phthalate is dissovled in more than 50 mL of water.
b) the potassium hydrogen phthalate in the reagent bottle in the laboratory has been left open on a humid day and teh potassium hydrogen phthalate has absorbed some moisture before you removed your sample of the acid.
c) While swirling the flask during the titration, some of the liqu9id splashed out before the end point was reached.