Topic 1: Formulae, Equations and Amount of Substance

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Last updated 9:15 AM on 6/27/26

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1

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what is the other unit for M/Molarity?

mol/dm^3

[M itself is a unit of concentration, so if you see 2M, that means conc. = mole / volume = 2M ]

2

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1nM = ? M

(nano-mol)

1nM = 1x10^-9 M

3

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1M = ? mM

(milli-mol)

1M = 1x10^3 mM

[ multiply since for the small unit mM to be equal to M, it must be multiplied ]

4

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1 μM = ? M

(micro-mol)

1μM = 1 x 10^-6 M

5

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What is the mass of Five hundred million atoms of platinum