A mole of nitrogen gas N2 and a mole of carbon dioxide gas CO2 contain the same number of molecules.
Question
A mole of nitrogen gas N2 and a mole of carbon dioxide gas CO2 contain the same number of molecules.
Solution
Yes, that's correct. A mole of any substance contains the same number of entities (atoms, molecules, ions etc.) as there are in 12 grams of carbon-12. This number is known as Avogadro's number, and it's approximately 6.022 x 10^23. So, one mole of nitrogen gas (N2) contains approximately 6.022 x 10^23 molecules of N2, and one mole of carbon dioxide (CO2) contains approximately 6.022 x 10^23 molecules of CO2.
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