Question

How many formula units are in 0.25 mole of Na2O?

Answer 1

Approximately 1,5.1023 molecules

Answer 2

Answer: The number of formula units in the given amount of sodium oxide is
`1.5* 10^(23)`

Step-by-step explanation:

Formula units are defined as lowest whole number ratio of ions in an ionic compound. It is calculate by multiplying the number of moles by Avogadro's number which is
`6.022* 10^(23)`

We are given:

Number of moles of sodium oxide = 0.25 moles

Number of formula units =
`0.25* 6.022* 10^(23)=1.5* 10^(23)`

Hence, the number of formula units in the given amount of sodium oxide is
`1.5* 10^(23)`