Question

How many atoms are in 10g of Al

Answer 1

2.22 x 10²³

Step-by-step explanation:

• number of atoms = mole x 6 x 10²³

first we have to find number of moles

• moles = mass(g) / molar mass (Mr) (g/mol)

mol = 10/27

mol= 0.37 mol

Now,

number of atoms = mole x 6 x 10²³

= 0.37 x 6 x 10²³

= 2.22 x 10²³