Question

How many atoms are in 10g of Al

Answer 1

Answer:

2.22 x  10²³

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