Question

What is avogardo number how many atoms of each element present in 6.3 gram of nitric acid

Answer 1

no of atoms=given mass/molar mass*avogadro no

mass=6.3

molar mass=73

avogadro no=6.022*10^23

molar mass varies from element to element

PLZ SALUTE TO INDIAN ARMY

Answer 2

$6.022 \times 10 {}^{23}$

this is Avogadro's Number.

IDK the answer of next part.

SORRY!