Stoichiometry Stoichiometry MCQS#Atomic Mass16Choose the best answerIf the atomic mass of element X is 8 u, which statement is correct?AOne atom of X has mass 8 g.BOne atom of X is 8 times heavier than 1 amu.COne mole of X has mass 8 amu.DThe mass of one atom of X is 8 kg. Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Avogadro's Number17Choose the best answerOne mole of P₄ contains:A6.02 × 10²³ P atomsB6.02 × 10²³ P₄ moleculesC4 × 6.02 × 10²³ P₄ moleculesD4 moles of P₄ molecules Like 0 Discuss 0Share
Stoichiometry 11#Atomic Mass18Choose the best answerIf the atomic mass of element X is 8 u, which statement is correct?AOne atom of X has mass 8 g.BOne atom of X is 8 times heavier than 1 amu.COne mole of X has mass 8 amuDThe mass of one atom of X is 8 kg. Like 0 Discuss 0Share
Stoichiometry 11#Atomic Mass19Choose the best answerIf the molecular mass of X₂ is 50 u, what is the atomic mass of X?A100 uB25 uC50 uD12.5 u Like 0 Discuss 0Share
Stoichiometry 11#Mole Concept20Choose the best answerWhich sequence correctly represents atom → molecule → compound?AHe → O₂ → OBNa → H₂ → H₂OCO → O₂ → ODH → H₂O → H₂ Like 0 Discuss 0Share