Lab: Back titration to determine the % CaCO3 in eggshell DATA COLLECTION [IB CHEMISTRY]

Описание к видео Lab: Back titration to determine the % CaCO3 in eggshell DATA COLLECTION [IB CHEMISTRY]

I got 85% but 95% expected. What could have gone (a little) wrong? Note the calculations are not in this video - check out "Mr M 4 Chem" video for that.

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