StoichiometryMass–Mole Stoichiometry246Choose the best answer12 g Mg reacts completely with excess acid: Mg + 2H⁺ → Mg²⁺ + H₂ Approximately how many moles of H₂ are produced?A1 molB0.5 molC2/3 molDNone of these Like 0 Discuss 0Share
StoichiometryMole Conversions247Choose the best answerMatch Column I with Column II. Column I: P) 88 g CO₂ Q) 6.022 × 10²³ H₂O molecules R) 5.6 dm³ O₂ at STP S) 96 g O₂ Column II: 1) 0.25 mol 2) 2 mol 3) 3 mol 4) 1 molAP-2, Q-4, R-1, S-3BP-1, Q-2, R-3, S-4CP-1, Q-4, R-3, S-2DP-4, Q-1, R-3, S-2 Like 0 Discuss 0Share
StoichiometryMole Concept and Molar Volume248Choose the best answerAt STP, one mole of an ideal gas has:AIts molar volumeBIts molar mass expressed in gramsCNA moleculesDAll of these Like 0 Discuss 0Share
StoichiometryPrinciples of Stoichiometry249Choose the best answerWhich statement is NOT consistent with ideal stoichiometric calculations?AThe intended reaction proceeds according to the stated equationBThe chemical equation must be balancedCSide-product formation is neglected unless specifiedDProducts should not follow stoichiometric relationships Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Atoms250Choose the best answerWhich sample contains approximately the same number of atoms as 6 g C?A0.5 mol O₂B11.2 dm³ H₂ at STPC12 g MgDAll of these Like 0 Discuss 0Share