1 Mole of any substance contains ______ molecules .

Avogadro is appreciable, because he found that one mole of any substance contains……molecules.

5 Moles of oxygen molecule contains _______ molecules.

One gram mole of a substance contains 6.022xx10^23 molecules. Find out the number of molecules in 2.8 g of nitrogen.

One gram mole of a substance contains 6.022xx10^23 molecules. 24 g of carbon is treated with 72 g of oxygen to form CO_2 . Find the number of molecules of CO_2 formed in this situation.

One mole of substance contains…….atoms or molecules.

One gram mole of substance contains 6.022xx10^23 molecules. Which is the heavier-one SO_2 molecule or one CO_2 molecule.

Give one example in substance which contains : molecules only,