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Assumptions of KTG

How many mole...

Question

How many moles are present in 11·5 g of sodium?

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Solution

Gram atomic mass of Na= 23g
23g of Na represent moles=1 mol
11.5 g of Na represents = $\frac{1 m o l \times 11.5 g}{23 g}$
=0.5 moles

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