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MHT CET Medical202622 April 2026Evening ShiftChemistrySome Basic Concepts of ChemistryActual

Calculate the number of carbon atoms present in 11 g of carbon dioxide.

Options

  1. A7.5275 10²³
  2. B1.5055 10²³
  3. C3.011 10²³
  4. D6.022 10²³

Correct answer

B. 1.5055 10²³

Step-by-step solution

Molar mass of CO₂ = 12 + 2 16 = 44 g/mol. Number of moles of CO₂ = 11 44 = 0.25 mol. Each molecule of CO₂ contains one carbon atom. Number of carbon atoms = 0.25 N_A = 0.25 6.022 10²³ = 1.5055 10²³ . Answer: 1.5055 10²³

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