Percent Composition By Mass
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- Опубліковано 15 чер 2014
- 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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Does anyone know how to get the percent composition of to compound if I only know the original mass of the 2 compounds together and the resultant mass and only the mass of left over compound and thet gasses (2)
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Do you have any vids (cannot find) explaining law of multiple proportions? Perhaps with practice problems?
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