Percent Composition By Mass

We'll learn how to calculate percent composition by mass, and we'll work through a number of practice problems. To calculate percent by mass, you need to determine two things: the mass of just the element, and the molar mass of the whole compound. Then, you take the molar mass of just the element and divide it by the molar mass of the whole compound, and multiply by 100%.

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[garciaoscos]

Tyler,

I want to thank you for the videos that you post in your channel. I have been understanding the General Chemistry concepts only thanks to your videos, I feel that is almost impossible for me to be sitting in a place where there are 400 people trying to listen to a chemistry lecture at college. 

Great

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