Mass percent composition as a conversion factor

We can use mass percent composition as a conversion factor between grams of a constituent element and grams of the compoxmd. For example, we just saw that the mass percent composition of sodium in sodium chloride is 39%. This can be written as ... 

EXAMPLE 6.8 Using Mass Percent Composition as a Conversion Factor The FDA recommends that adults consume less than 2.4 g of sodium per day. Flow many grams of sodium chloride can you consume and still be within the FDA guidelines Sodium chloride is 39% sodium by mass. ... 

SKILLBUILDER 6.8 Using Mass Percent Composition as a Conversion Factor... 

In the previous section, we learned how to calculate mass percent composition from experimental data and how to use mass percent composition as a conversion factor. We can also calculate the mass percent of any element in a compound from the chemical formula for the compound. Based on the chemical formula, the mass... 

STRATE6IZE Convert between mass of a constituent element and mass of a compound by using mass percent composition as a conversion factor. 

Using Mass Percent Composition as a Conversion Factor (3.9) Example 3.15 For Practice 3.15 For More Practice 3.15 Exercises 77, 78... 

Density and Percent Composition Their Use in Problem Solving—Mass and volume are extensive properties they depend on the amount of matter in a sample. Density, the ratio of the mass of a sample to its volume, is an intensive property, a property independent of the amount of matter sampled. Density is used as a conversion factor in a variety of calculations. 

The mass percent composition of an element in a compound is a conversion factor between mass of the element and mass of the compound. For example, we saw that the mass percent composition of Cl in CCI2F2 is 58.64%. Since percent means per hundred, there are 58.64 g Cl per hundred grams CCI2F2, which can be expressed as the ratio ... 

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