Question

Calculate the no. of particles 48 g of Na atoms . atomic mass of Na = 23 u .​

Answer 1

Answer:

atomic mass of Na=23u

Number of atoms=Number of Moles x

N

A

⇒(given weight/ Gram atomic weight) x 6.023 x 10²³

=(46/23)x 6.023 x 10²³

=2x 6.023 x 10²³

⇒12.046 x 10 ²³Na particles

∴46 g of Na contains 12.044 x 10 ²³ atoms

Explanation:

Answer 2

Answer:

atomic mass of Na=23u

Number of atoms=Number of Moles x

N

A

⇒(given weight/ Gram atomic weight) x 6.023 x 10²³

=(46/23)x 6.023 x 10²³

=2x 6.023 x 10²³

⇒12.046 x 10 ²³Na particles

∴46 g of Na contains 12.044 x 10 ²³ atoms