StoichiometryMole Concept and Number of Molecules186Choose the best answerA patient takes two spoons of glucose, C₆H₁₂O₆. Each spoon contains 4.5 g glucose. How many glucose molecules are taken?A6.02 × 10²²B3.01 × 10²²C1.505 × 10²²D3.01 × 10²³ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Molecules187Choose the best answerApproximately how many molecules are present in 1 g H₂?A6.02 × 10²³B3.01 × 10²³C1.505 × 10²³D6.02 × 10²² Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Particles188Choose the best answer0.25 mol CH₄ contains:A1.505 × 10²³ CH₄ moleculesB1.505 × 10²³ carbon atomsC6.02 × 10²³ hydrogen atomsDAll of these Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Atoms189Choose the best answerWhich sample contains the greatest number of oxygen atoms?A1 g OB1 g O₂C1 g O₃DAll contain the same number Like 0 Discuss 0Share
StoichiometryMole Concept and Mass Comparison190Choose the best answerConsider: I. 2.5 mol CH₄ II. 22.4 dm³ O₂ at STP III. 6.02 × 10²² C atoms IV. 3.5 mol He What is the increasing order of their masses?AI < II < III < IVBIV < III < II < ICIII < IV < II < IDII < I < III < IV Like 1 Discuss 0Share