StoichiometryMole Concept and Number of Atoms161Choose the best answerHow many atoms are present in 0.1 mol of a triatomic gas? NA = 6.02 × 10²³ mol⁻¹A6.026 × 10²²B1.806 × 10²³C3.600 × 10²³D1.800 × 10²² Like 0 Discuss 0Share
StoichiometryMolar Volume at STP162Choose the best answerThe conventional molar volume of 22.4 dm³ mol⁻¹ corresponds to:A0°C and 1 atmB273°C and 1 atmC0°C and 273 atmD273 K and 273 atm Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Protons163Choose the best answerHow many protons are present in 1 mol H₂?A6.02 × 10²³B1.20 × 10²⁴C12.04 × 10²²D6.02 × 10²⁴ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Atoms164Choose the best answer0.5 mol H₂O contains:A0.5 mol H atomsB22.4 dm³ OCNA H atomsD2 mol atoms Like 0 Discuss 0Share
StoichiometryGram-Atom and Mole Concept165Choose the best answerWhat mass is present in one gram-atom of Na?A13 gB23 gC1 gD1/23 g Like 0 Discuss 0Share