Stoichiometry#Atomic Structure#Isotopes226Choose the best answerCarbon-12, carbon-13 and carbon-14 differ in their number of:ANumber of electronsBNumber of protonsCNumber of neutronsDNuclear charge Like 0 Discuss 0Share
StoichiometryMass–Mass Stoichiometry227Choose the best answerHow many grams of O₂ are required to produce 1.8 g H₂O? 2H₂ + O₂ → 2H₂OA32 gB16 gC1.6 gDNone of these Like 0 Discuss 0Share
StoichiometryMolar Volume at STP228Choose 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
StoichiometryGas Volume, Mass and Molar Mass229Choose the best answerFor equal masses of O₂, H₂ and CH₄ at the same temperature and pressure, the volume ratio O₂ : H₂ : CH₄ is:A1 : 1 : 1B1 : 16 : 2C2 : 16 : 2D2 : 16 : 1 Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Protons230Choose the best answerHow many protons are present in 1 mol H₂?A6.02 × 10²³B1.20 × 10²⁴C12.04 × 10²²D6.02 × 10²⁴ Like 0 Discuss 0Share