Question

How many moles in 97g of potassium

Answer 1

Answer:

Molar mass of potassium is 39g

No of moles = given mass / molar mass

= 97 / 39

= 2.48 moles

Answer 2

As, Molar Mass(M.M.) of Potassium is 39 g/mol.

And number of moles(n) is defined as:

n = m/M.M.

Now, substituting 97 for 'm' and 39 for 'M.M', we get:

n = 97 ÷ 39

⇒n = 2.487 mol ≈2.5 mol