Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET Medical202625 April 2026Morning ShiftChemistrySome Basic Concepts of ChemistryActual

Calculate the number of atoms in 52 moles of argon.

Options

  1. A218.8 10²³
  2. B545.1 10²³
  3. C313.1 10²³
  4. D136.3 10²³

Correct answer

C. 313.1 10²³

Step-by-step solution

Number of atoms = Number of moles Avogadro's number Number of atoms = 52 6.022 10²³ Number of atoms = 313.144 10²³ Number of atoms 313.1 10²³ Answer: 313.1 10²³

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. [Molar mass of potassium chlorate = 122.5 g mol ⁻¹ ] 2026Find the mass of lime obtained by heating 500 g of 90 % pure lime stone. [Molar masses Ca =40 g/mol, O =16 g/mol & C =12 g/mol] 2026A coordination complex contains 2.6 % of Mg. Find the number of Mg atoms in 5.0 g of this sample. (gram atomic mass of Mg = 24 g ) 2026Calculate the number of moles and molecules of chlorine in 4.48 dm ^3 of chlorine at STP. 2026What is the gram atomic mass of an element whose mass of one atom is 3.9853 10⁻²³ g ? 2026Calculate the total mass and number of molecules present in 3 moles of benzene. 2026Which of the following gases has high vapour density at same temperature and pressure? 2026What is the number of moles of Cl atoms present in n moles of tear gas and in n moles of mustard gas respectively? 2026 Full Some Basic Concepts of Chemistry list All MHT CET Medical PYQs