Question

Why h2, n2 and co2 has equal number of molecules?

Answer 1

Answer:

Under similar temperature and pressure circumstances, equal quantities of all gases contain the same number of molecules.  

Explanation:

• In the example above, all gases have the same volume, temperature, and pressure. As a result, all gases contain the same amount of molecules. When it comes to N2 and CO, identical masses imply an equal number of molecules.
• Other gases, on the other hand, will not have the same number of molecules despite their similar mass.
• As a result, the mass of carbon dioxide containing the same number of molecules as 40 g oxygen is 55 g.
• 0.4 mol*6.023*10(23) molecules/mol = 2.4092*10(23) molecules in this mole of water.
• So this is the total number of CO2 molecules for which you'd like to compute the mass.
• According to the Avagadro theory, 1 mol of CO2 contains 6.023*10(23) molecules, which equals 44 gm/mol (MW of CO2)
• As a result, there are 2.4092*10(23) molecules in 44*2.4092*10(23)/6.023*10(23) gm CO2= 17.6 gm CO2.