Question

How many moles would contain 1.50 x 1024 atoms of sodium?

Answer 1

2.5 moles

Step-by-step explanation:

We are given;

• 1.5 × 10^24 atoms

We are required to determine the number of moles of sodium.

• We know that, 1 mole of an element contains a number of atoms equivalent to the Avogadro's number, 6.022 × 10^23.
• That is, 1 mole of an element = 6.022 × 10^23 atoms.

Therefore;

1 mole of sodium contains 6.022 × 10^23 atoms

To get the number of moles;

= Number of atoms ÷ Avogadro's number

= 1.5 × 10^24 atoms ÷ 6.022 × 10^23 atoms/mol

= 2.49 moles

= 2.5 moles

Therefore, 2.5 moles of sodium contains 1.50 × 10^24 sodium atoms