XIIMDCAT Chemistry Test#Mass Ratio#Stoichiometry26Choose the best answerWhat is the mass ratio of carbon to hydrogen in C₆H₆?A6 : 1B1 : 1C12 : 1D1 : 12 Like 0 Discuss 0Share
StoichiometryMole#Mole Concept27Choose the best answerWhich descriptions are equivalent to one gram-atom of an element?AGram atomic massBOne gram-atomCOne mole of atomsDA, B and C Like 2 Discuss 0Share
StoichiometryMole Concept and Number of Particles28Choose the best answerWhich statement is correct?A1 g H₂ and 16 g CH₄ contain equal numbers of moleculesB1 g C and 2 g Mg contain approximately equal numbers of atomsC1 mol O₂ and 1 mol He contain equal numbers of atomsDAll of these Like 0 Discuss 0Share
StoichiometryMolar Volume and Number of Molecules29Choose the best answerHow many molecules are present in 56 dm³ O₂ at STP (273 K and 1 atm)?A6.02 × 10²³B3.01 × 10²³C1.505 × 10²³D1.505 × 10²⁴ Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Atoms30Choose the best answerThe number of oxygen atoms present in 49 g H₂SO₄ is:A0.5NABNAC2NAD4NA Like 0 Discuss 0Share