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Atomic Mass and Atomic Mass Unit

How many mole...

Question

How many moles are there in 34.5 g of sodium

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Solution

Number of moles will be equal to given mass / molar mass

Given mass = 34.5 g

Molar mass of sodium = 23g per mole

Number of moles = mass/molar mass= 34.5 / 23

So 1.5 moles are present in 34.5 g of sodium

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