Question

How many mol of potassium are represented by 7.85 x 10^23 potassium atoms?

Answer 1

1 mole has 6.02 ×10^23 so if divide 7.85×10^23 by mole number : 7.85/6.02=1.3 mole

Answer 2

Answer: The moles of potassium element is 1.30 moles.

Step-by-step explanation:

We are given:

Number of potassium atoms =
`7.85* 10^(23)`

According to mole concept:

`6.022* 10^(23)` number of atoms are contained in 1 mole of an element

So,
`7.85* 10^(23)` number of atoms will be contained in
`(1)/(6.022* 10^(23))* 7.85* 10^(23)=1.30mol` of potassium element

Hence, the moles of potassium element is 1.30 moles.