Chemistry · Challenge

1/4
Titration endpointRunning
pH stabilizer. Alkali volume at 5.6 mL. Acid moles 3.75 mmol, Alkali moles 0.56 mmol. Currently alkali moles is short by 3.19 mmol.TUNING5.6 mL addedacidstill acidic
t = 0.0s

Acid moles

3.75mmol

Alkali moles

0.56mmol

Alkali moles is short by 3.19 mmol

5.6 mL

pH stabilizer. Alkali volume at 5.6 mL. Acid moles 3.75 mmol, Alkali moles 0.56 mmol. Currently alkali moles is short by 3.19 mmol.

What has to balanceM1V1=M2V2M_1V_1 = M_2V_2

What is happening

You take control of a water board titrating a sample against standard alkali.

The colour change is overshot every time. The acid sample is 0.15 M in 25 mL, and the alkali in the burette is 0.10 M.