Question

the mass of an atom of gas is approximately 1.45×10^-27 kg. How many atoms are there in 1g of the gas?answer is 7.0 ×10^23. please tell the process.​

Answer 1

Step-by-step explanation:

Apply unitary method

3.35×10

−23

g contains 1 atom of neon

∴ 1g contain

3.35×10

−23

1

atoms of neon

∴ 20g contains 20×

3.35×10

−23

1

atoms of neon

=5.97×10

23

atoms of neon