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Mole Concept

How many mole...

Question

How many mole are there in $34.5 g$ of sodium ? (Atomic mass of $N a = 23 u$ )

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Solution

1 mole of $N a$ has a mass of $23 g$
X moles of sodium has a mass of $34.5 g$
$X = \frac{34.5}{23}$
$= 1.5 m o l e s$

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Q. How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)

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