Question

i) Calculate to find which of the following has more number of atoms : 100 g N 2 or 100 g O 2
(ii) Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. The
atomic mass of magnesium is 24 u.
(iii) Calculate the number of molecules of sulphur (S 8 ) present in 16 g solid sulphur.

Answer 1

Explanation:

1...O2

2...0.5

3...32 multiply 8 and divided by 16

answere is multiple with Na