Calculate the number of moles in 5.75 g of sodium.
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Calculate the number of moles in 5.75 g of sodium.
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Solution-

Atomic mass of sodium = 23

1 mol of sodium atoms = gram-atomic mass of sodium = 23 g.

23 g of sodium = 1 mol of sodium.

5.75 g of sodium = 5.75 /23mol of sodium = 0.25 mol.

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