Calculate mass of an atom of oxygen

Calculate the mass of one atom of oxygen.

Calculate mass of 10^20 atoms of oxygen.

Calculate mass of one atom of nitrogen in gram .

Calculate the mass of an atom of silver.

Calculate the mass of 2.5g atom of oxygen

Calculate the actual weight of : an atom of oxygen

Calculate the mass of 2.5gram atoms of calcium?

Calculate the mass of 1.5gram atoms of calcium?

Oxygen gas generated by the decomposition of potassium chlorate is collected. The volume of oxygen collected at 24^(@)C and atmospheric pressure of 760 m m Hg is 128 mL . Calculate the mass ( in grams ) of oxygen gas obtained. The pressure of water vapour at 24^(@)C is 22.4 m m Hg .

Calculate the mass of one molecule of oxygen.