Carboxylic AcidsHydrogen Bonding and Dimerization601Choose the best answerAcetic acid exists as a dimer in benzene because of:ACondensationBThe presence of the –COOH group onlyCThe presence of α-hydrogen atomsDIntermolecular hydrogen bonding Like 0 Discuss 0Share
LiquidsEvaporation602Choose the best answerEvaporation of a liquid can occur:AOnly above its boiling pointBOnly at 100°CCOnly at 0°CDAt all temperatures at which the liquid exists Like 0 Discuss 0Share
StoichiometryGas Volume and Mass Stoichiometry603Choose the best answerIn the reaction: 2NO + O₂ → 2NO₂ 560 cm³ NO₂ is produced at STP (273 K and 1 atm), while 50 mg O₂ remains unused. What were the initial masses of NO and O₂?A0.6 g NO and 0.4 g O₂B0.75 g NO and 0.45 g O₂C6.0 g NO and 4.5 g O₂D0.3 g NO and 0.37 g O₂ Like 0 Discuss 0Share
StoichiometryPercentage Yield604Choose the best answerIf actual yield is 15 g and theoretical yield is 20 g, what is the percentage yield?A50%B75%C80%D90% Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Isotopes605Choose the best answerArtificial isotopes are generally produced by:ANuclear bombardmentBFiltrationCCrystallizationDDistillation Like 0 Discuss 0Share