Question

7. Calculate the number of particles in each of the following (AS-1)
a) 46g of Na
b) 8g of O2 c) 0.1 mole of hyd hitrogen​

Answer 1

Explanation:

Molecular mass of Na=23g

23g of Na has 6.022×10²³ atoms

46g of Na has 1.2044×10²⁴ atoms.

b. Molecular mass of O2=32g

32g of O2 has 6.022×10²³ atoms of O2

8g of O2 will have 1.5055×10²³ atoms of O2

c. 1 mole of Hydrogen has 6.022×10²³ atoms of Hydrogen.

0.1 mole will have 6.022×10²² atoms of hydrogen.

Hope u find it helpful!!!!!