How do you determine molar mass?

1 Answer
anor277
Dec 6, 2016

Molar mass is measured not determined.

Explanation:

For a given formula, say #LiNO_3#, we find the molar mass by adding the individual atomic masses: #(6.941+14.01+3xx16.00)*g*mol^-1#.

From where did I get these atomic masses? Had I memorized them? From where will you get them if you are asked to calculate a formula mass in an exam?

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