Consider the balanced reaction: 2 A + B → C,where the molar mass of B is less than the molar mass of A. It requires a smaller mass of A to completely react with given mass of B.

Question

Quizplus · Accepted Answer

The molar mass of a substance does not directly determine the mass required for a reaction. The stoichiometry of the reaction dictates that 2 moles of A are needed for every mole of B, regardless of their individual molar masses. Therefore, even if B has a lower molar mass, the reaction requires a specific mole ratio, not mass ratio, for complete reaction.

Consider the Balanced Reaction: 2 a + B → C,where