The number of oxygen atoms in 4.4g of carbon dioxide is approximately?

Explanation

To determine the number of oxygen atoms in a given mass of carbon dioxide (CO2 ), you can use the following steps:Find the moles of CO2 using its molar mass.Use Avogadro's number to find the number of molecules.Since each molecule of CO2 contains two oxygen atoms, multiply the number of molecules by 2 to find the number of oxygen atoms.Given:● Mass of CO2 = 4.4 g● Molar mass of CO2 = 12.01+2×16.00 (C: 12.01 g/mol, O: 16.00 g/mol)Find moles of CO2 : Moles=Mass/Molar mass Moles=4.412.01+2×16.00Moles=12.01+2×16.004.4 Use Avogadro's number (6.02×10236.02×1023) to find the number of molecules: Number of molecules=Moles×6.02×1023Number of molecules=Moles×6.02×1023Since each molecule of CO2 has 2 oxygen atoms, multiply the number of molecules by 2: Number of oxygen atoms=2×Number of moleculesNow, let's perform the calculations:Moles=4.41/2.01+2×16.00≈4.444.01≈0. 1Number of molecules=0.1×6.02×1023≈6.02×1023Number of oxygen atoms=2×6.02×1022=1.204×1023So, the closest option is: 1.2×1023