Question

Part
b.2. the wall of the erlenmeyer flask is occasionally rinsed with water from the wash bottle (see part
a.6) during the analysis of the acid solution. will this technique result in the molar concentration of the acid solution being reported as too high, too low, or unaffected? explain.

Answer 1

Once you add an amount of reactant into your flask adding more water will not change the number of moles of reactant that are present in the flask. The titrant will react in the mole ratio for that particular reaction so water doesn't play a role. You can rinse the flask and even use water to get part of a drop into your flask for a more accurate titration.