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- Molar mass can be used as a conversion factor because it provides a direct link between the mass of a substance (in grams) and the number of moles, which corresponds to the number of particles present in the sample.
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Aug 10, 2022 · The simplest type of manipulation using molar mass as a conversion factor is a mole-mass conversion (or its reverse, a mass-mole conversion). In such a conversion, we use the molar mass of a substance as a conversion factor to convert mole units into mass units (or, conversely, mass units into mole units).
- Solutions
Solution concentrations expressed in molarity are the...
- Solutions
The first conversion factor comes from the balanced chemical equation, the second conversion factor is the molar mass of H 2 O 2, and the third conversion factor comes from the definition of percentage concentration by mass.
- David W. Ball, Jessie A. Key
- 2014
Molar mass can be used as a conversion factor because it provides a direct link between the mass of a substance (in grams) and the number of moles, which corresponds to the number of particles present in the sample.
Molar mass can then be used as a conversion factor to convert amounts in moles to amounts in grams. It is important to remember that “mol” in this expression refers to moles of solute and that “L” refers to liters of solution.
The first conversion factor comes from the balanced chemical equation, the second conversion factor is the molar mass of H 2 O 2, and the third conversion factor comes from the definition of percentage concentration by mass.
- David W. Ball, Jessie A. Key
- 2014
Of course, once quantities in moles are available, another conversion can give the mass of the substance, using molar mass as a conversion factor. Example 9.10. What mass of solute is present in 0.765 L of 1.93 M NaOH? Solution.
We will do this in two steps: convert the mass of AlCl 3 to moles and then use the balanced chemical equation to find the number of moles of HCl formed. The molar mass of AlCl 3 is 133.33 g/mol, which we have to invert to get the appropriate conversion factor: