Stoichiometry review questions
Subject:
Chemistry [1]
Tags:
Chemistry [2]
Mass [3]
Greenhouse gases [4]
Dietary minerals [6]
Reducing agents [7]
Limiting reagent [8]
Molecular mass [9]
Mole [10]
Molar mass [11]
Ethane [12]
Stoichiometry [13]
A substance with the formula AB has the composition by mass of 30% A and 70% B. What is the composition by mass of the compound A2B? 70% A, 30% B 50% A, 50% B 46% A, 54% B 60% A, 40% B 65% A, 35% B A mass of 21.5 grams of calcium hydroxide reacts with an excess of phosphoric acid. What mass of calcium phosphate could be recovered from solution? 31.6 grams 94.7 grams 326 grams 284 grams 186 grams Given the equation 3A + 4B ? 2C + 3D, you react 5 moles of A with 7 moles of B. Which of the following statements is true? B has a greater molar mass than A A is the limiting reactant A has a greater molar mass than B