MHT CET Medical202624 April 2026Evening ShiftChemistrySome Basic Concepts of ChemistryActual
Calculate the number of moles and molecules of chlorine in 4.48 dm ^3 of chlorine at STP.
Options
- AThe number of mol of chlorine = 0.2 and number of molecules = 1.2044 10²³ .
- BThe number of mol of chlorine = 0.4 and number of molecules = 2.4088 10²³ .
- CThe number of mol of chlorine = 0.5 and number of molecules = 3.011 10²³ .
- DThe number of mol of chlorine = 0.6 and number of molecules = 3.6132 10²³ .
Correct answer
A. The number of mol of chlorine = 0.2 and number of molecules = 1.2044 10²³ .
Step-by-step solution
Volume of chlorine gas at STP = 4.48 dm ^3 Molar volume of an ideal gas at STP = 22.4 dm ^3 mol ⁻¹ Number of moles of chlorine = Volume at STP Molar volume = 4.48 22.4 = 0.2 mol Number of molecules of chlorine = Number of moles N_A Number of molecules = 0.2 6.022 10²³ = 1.2044 10²³ Answer: The number of mol of chlorine = 0.2 and number of molecules = 1.2044 10²³ .