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Molar Mass

How many atom...

Question

How many atoms are present in 0.5g of atoms of silicon?

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Solution

Atomic mass of silicon is 28 g
So, 28 g of silicon has 6.023 * 10²³ atoms
In 0.5 g of silicon, number of atoms of silicon = (6.02310²³ /28) 0.5 = 1.0755 *10²²

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