The number of oxygen atoms in 4.4g of carbon dioxide is approximately?
Correct answer: A. 1.2 x 10^23
- A. 1.2 x 10^23
- B. 6 x 10^22
- C. 6 x 10^23
- D. 2 x 10^23
Explanation
Correct Option: a. 1.2 x 10^23Here's how we can calculate the number of oxygen atoms in 4.4g of carbon dioxide:1. Calculate the number of moles of CO2:Molar mass of CO2 = 44.01 g/molNumber of moles (n) = mass (m) / molar massn = 4.4 g / 44.01 g/mol ≈ 0.1 mol2. Determine the number of oxygen atoms per molecule of CO2:Each CO2 molecule has 2 oxygen atoms.3. Calculate the total number of oxygen atoms:Number of oxygen atoms = n (moles of CO2) * atoms per molecule * Avogadro's constant (N_A)N_A ≈ 6.022 x 10^23 atoms/molNumber of oxygen atoms ≈ 0.1 mol * 2 atoms/molecule * 6.022 x 10^23 atoms/mol ≈ 1.204 x 10^23 atomsTherefore, there are approximately 1.2 x 10^23 oxygen atoms in 4.4g of carbon dioxide.
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