Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET 202622 AprilEvening Shift
Exam
MHT CET
Year
2026
Date
22 April
Shift
Evening Shift
Subject
Chemistry
Chapter
Some Basic Concepts of Chemistry

MHT CET 2026 · 22 April · Evening Shift · Chemistry · Some Basic Concepts of Chemistry

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

Calculate the number of carbon atoms present in 1111 g of carbon dioxide.

Options

  1. A7.5275×10237.5275 \times 10^{23}
  2. B1.5055×10231.5055 \times 10^{23}
  3. C3.011×10233.011 \times 10^{23}
  4. D6.022×10236.022 \times 10^{23}

Correct answer

B. 1.5055×10231.5055 \times 10^{23}

Step-by-step solution

Molar mass of CO2=12+2×16=44CO_2 = 12 + 2 \times 16 = 44 g/mol.

Number of moles of CO2=1144=0.25CO_2 = \dfrac{11}{44} = 0.25 mol.

Each molecule of CO2CO_2 contains one carbon atom.

Number of carbon atoms = 0.25×NA=0.25×6.022×1023=1.5055×10230.25 \times N_A = 0.25 \times 6.022 \times 10^{23} = 1.5055 \times 10^{23}.

Answer: 1.5055×10231.5055 \times 10^{23}
Practice Some Basic Concepts of Chemistry on Quantrex Academy →

More from Some Basic Concepts of Chemistry

Calculate the mass of potassium chlorate required to liberate 6.72 dm^3 of oxygen at STP.… MHT CET Medical 2026Find the mass of lime obtained by heating 500 g of 90\% pure lime stone. [Molar masses… MHT CET Medical 2026A coordination complex contains 2.6\ \% of Mg. Find the number of Mg atoms in 5.0 g of… MHT CET Medical 2026Calculate the number of moles and molecules of chlorine in 4.48\ dm^3 of chlorine at STP. MHT CET Medical 2026What is the gram atomic mass of an element whose mass of one atom is 3.9853 × 10^ -23 \ g… MHT CET Medical 2026Calculate the total mass and number of molecules present in 3 moles of benzene. MHT CET Medical 2026Which of the following gases has high vapour density at same temperature and pressure? MHT CET Medical 2026What is the number of moles of Cl atoms present in n moles of tear gas and in n moles of… MHT CET Medical 2026 Full Some Basic Concepts of Chemistry list All MHT CET Medical PYQs