December 1, 2015

Homework Help: chemistry

Posted by bekah on Tuesday, April 1, 2014 at 10:26pm.

My original sample of mixed salt had a mass of 8.9 grams. After heating the mixture in the crucible and weighing it multiple times my final mass of salt ended up being 4.9. How many moles of oxygen were driven off?
Lost on how to do this been a while since I have done this.

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