Tuesday
May 5, 2015

Homework Help: chemistry

Posted by Sandy on Sunday, February 2, 2014 at 1:05am.

A student dried a wet crucible with a Kimwipe. A piece of Kimwipe was left clinging to the inside wall of the crucible, The student did not see the piece of Kimwipe when adding the NaHCO3-KCl mixture to the crucible. The crucible ans its contents were weighed and subjected to three heating-cooling cycles (each time the temperature reached 600 Celsius). Could this experimental error significantly affect the calculated percentage of NaHCO3 in the mixture? Justify answer with an explanation.

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