Question

4 gram of a substance contains 1.5 × 10^23 find the molar mass of he element​

Answer 1

Answer:

Mole concept

Explanation:

No. of molecules / Avagadro number = weight / molecular mass

1.5 × 10²³ / 6 × 10²³ = 4 / Mm

1 / 4 = 4 / Mm

Molecular mass = 16

it is oxygen element.