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How many atoms are in 1.8722g of tungsten, W

Sagot :

Answer:

[tex]\text{6.12535 }\times10^{21}\text{ atoms}[/tex]

Explanation:

Here, we want to get the number of atoms in the given Tungsten mass

Mathematically:

1 mole of Tungsten has a mass of 184g

x moles of Tungsten will have a mass of 1.8722g

Thus:

[tex]\begin{gathered} x\times184\text{ = 1.8722g} \\ x\text{ = }\frac{1.8722}{184}\text{ = 0.010175 mole} \end{gathered}[/tex]

1 mole contains 6.02 * 10^23 atoms

0.010175 mole contains x atoms

Thus:

[tex]x\text{ = 0.010175}\times6.02\times10^{23}\text{ = 6.12535 }\times10^{21}\text{ atoms}[/tex]

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