S.4 Chemistry: Concentration of Solutions

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Ch.15 Concentration

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Why do we use Mass vs Number of Moles?

Mass (g)	Number of Moles (mol)
Easily measured directly using an electronic balance. Useful for comparing amounts of the same substance in a certain volume (e.g. sugar content on food labels). Disadvantage: Cannot be used to directly compare different substances because they have different molar masses.	More commonly used in Chemistry. Very convenient for comparing amounts of different substances. Essential for using mole ratios in chemical equations and performing stoichiometry calculations.

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