Question

How many atoms are there in 3.33 miles of strontium

Answer 1

There are $1.99\times 10^{23}$ atoms of strontium in 0.33 moles

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number $6.023\times 10^{23}$ of particles.

1 mole of strontium contains= $6.023\times 10^{23}$ atoms of strontium

0.33 moles of strontium contains= $\frac{6.023\times 10^{23}}{1}\times 0.33=1.99\times 10^{23}$ atoms of strontium

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