Question

How many molecules are in 2.64 moles of Na2O?

Answer 1

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Answer 2

The number of molecules that are present in 2.64 moles of sodium oxide,
`Na_2O`, is
`1.59*10^(24)\ molecules`

How to calculate the number of molecules in 2.64 moles of sodium oxide,
`Na_2O`?

We know that mole and number of moles present in a substance are related by the following formula:

Number of molecules = Mole × Avogadro's number

With the above formula, we can successfully calculated the number of molecules that are present in 2.64 moles of sodium oxide,
`Na_2O`. Details as follow:

• Mole of sodium oxide,
  `Na_2O` = 2.64 moles
• Avogadro's number =
  `6.022*10^(23)\ molecules`
• Number of molecules of sodium oxide,
  `Na_2O` =?

Number of molecules of sodium oxide,
`Na_2O` = Mole × Avogadro's number

`= 2.64\ *\ 6.022*10^(23)\\\\= 1.59*10^(24)\ molecules`