Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight.
(a) Whose container is heavier?
(b) Whose container has more number of atoms?
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Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight.
(a) Whose container is heavier?
(b) Whose container has more number of atoms?
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Answer:
To answer your questions, we need to compare the molar masses of carbon and sodium. The molar mass of a substance is the mass in grams of one mole of that substance. One mole of any substance contains 6.022 x 10^23 atoms, molecules, or units of that substance. This number is called the Avogadro constant.
The molar mass of carbon is 12.0107 g/mol and the molar mass of sodium is 22.989770 g/mol.
Therefore, we can conclude that:
(a) Krish’s container is heavier, because sodium has a higher molar mass than carbon. The mass of 5 moles of carbon is 5 x 12.0107 = 60.0535 g, while the mass of 5 moles of sodium is 5 x 22.989770 = 114.94885 g.
(b) Raunak’s and Krish’s containers have the same number of atoms, because they both contain 5 moles of atoms. The number of atoms in 5 moles of any substance is 5 x 6.022 x 10^23 = 3.011 x 10^24 atoms.