Atoms and Molec...

The number of atoms present in $$10$$ gms of $$CaCO_{3}$$ is:

Assertion: 1 mole $$O_{3} (ozone)=N$$ molecule of $$O_{3} (ozone)=3N$$ atoms of $$O (oxygen)=48g$$

Mass of one atom of oxygen is:

Cation and anion present (if any) in $$CH_3COONa$$ are :

Which of the following statements is not true about an atom?

Which of the following compounds contains maximum number of atoms? 

The number of atoms in 0.1 mol of a triatomic gas is:

Which of the following would weigh the highest?

Dalton's atomic theory successfully explained :
(i) Law of conservation of mass
(ii) Law of constant composition
(iii) Law of radioactivity
(iv) Law of multiple proportions

The mass of one steel screw is 4.11gm. Find the mass of one mole of these steel screws.