Molar Mass
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A substance's molar mass is the mass in grams of one mole, numerically equal to its formula mass.
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Carbon-12's atomic mass is exactly 12 amu, so one mole of carbon-12 atoms has a mass of 12 grams to within any laboratory precision.
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Atomic mass and molar mass share a number, not a unit: one is amu, the other grams per mole.
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- 0376 Converting Mass to Moles
- 0391 Determining Molecular Formula from Empirical Formula and Molar Mass
- 1259 Gas Density from the Ideal Gas Law
- 1262 Determining Molar Mass from Measured Gas Properties
- 1300 Graham's Law of Effusion
- 1305 Calculating Relative Effusion Rates
- 1321 Calculating Root-Mean-Square Speed
- 1373 Ranking Boiling Points by Dispersion-Force Strength
- 1558 Calculating a Solution's Vapor Pressure Under Raoult's Law
- 1580 Determining Molar Mass from a Colligative Property
- 1607 Writing Relative Rate Expressions from a Balanced Equation