Question

The Number of oxygen atoms in 4.4g of CO2 is approx. ?​

Answer 1

Answer:

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Explanation:

molar mass of CO2 = 44 g/molNumber of moles in 4.4 g of CO2= 4.4/ 44 = 0.1 molesOne mole of CO2 contains = 2 moles of oxygen atoms0.1 mole contains =2 × 0.1 = 0.2 moles of oxygen atoms = 0.2 x 6.023 x 10^23 = 1.246 x 10^23 oxygen atoms

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Answer 2

Answer:

$\huge\underline\orange{\mathcal Answer}$

$\huge\blue{\boxed{\mathcal 1.2×{10}^{23} atoms}}$

$\huge\underline\orange{\mathcal Solution:-}$

Molecular weight of CO2 = 12+16+16

Molecular weight of CO2 = 44 g

______________________________________

$\large{\mathcal 44 g\:of\:CO2\:has\: =2×6×{10}^{23}}$

$\large{\mathcal 4.4g\:of\:CO2\:has={\frac{12×{10}^{23}}{44}}×4.4}$

$\large{\boxed{\mathcal 4.4g\:Of\:CO2\:has=1.2×{10}^{23}atoms}}$