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/sci/ - Science & Math

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>> No.11511667 [View]
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11511667

So i know the answer to this 9.0g of h2o but i'm just so confused about how my lecturer went about figuring this out? Did a whole lecture on Avogadro's number but i got no idea how to solve this problem and 3 others. I've watched a few videos and searched up the process of getting this number but no questions seem to be like this.

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