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xeze [42]
3 years ago
6

How many atoms are in 4.00 moles of helium?

Chemistry
2 answers:
7nadin3 [17]3 years ago
4 0

Answer:

Number of atoms in 4.00 moles of helium = 2.4092\times 10^{24}

Explanation:

Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by N_0.

Avogadro constant:-

N_a=6.023\times 10^{23}

Thus,

1 mole of helium contains  6.023\times 10^{23} atoms

So,

4.00 moles of helium contains  4.00\times 6.023\times 10^{23} atoms

<u>Number of atoms in 4.00 moles of helium = 2.4092\times 10^{24} </u>

irga5000 [103]3 years ago
3 0
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles.

4 mol He (  </span>6.022 x 10^23 atoms / mole ) = 2.4088 x 10^34 atoms He
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