A gas cylinder contains 12 x 10^24 molecules of oxygen gas. If Avogadro's number is 6 x 1023. Calculate :The mass of oxygen present in the cylinder.
A gas cylinder contains 12 x 1024 molecules of oxygen gas. If Avogadro's number is 6 x 1023. Calculate :The mass of oxygen present in the cylinder.
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12 x 1024 molecules of oxygen gas.
Number of mole = 12 x 1024/ 6 x 1023 = 20 mole
1 mole of oxygen has the atomic weight ----> 32 g
20 mole -----> 32 x 20 = 640 g
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