Chem 9

the units of molar mass are

g/mol

each of the four types of reaction stoichiometry problems required using a

mole ratio

what is the maximum possible amount of product obtained in a chemical reaction

theoretical yield

for the reaction represented by the equation 2H2+O2-->2H2O how many moles if water can be produced from 6.0 mol of oxygen

2.0 mol

in the reaction represented by the equation N2+3H2-->2NH3 what is the mike ratio if hydrogen to ammonia

2:1

what id the measured amount of a product obtained from a chemical reaction

actual yield

to determine the limiting reactant in a chemical reaction one must know the

available amount of each reactant

if one knows the mole ratio of a reactant and product in a chemical reaction one can

calculate the mass of the product produced from a known mass of reactant

to balance a chemical equation it may be necessary to adjust the

coefficients

a chemical reaction involving substances A and B stops when B is completely used B is the

limiting reactant

after calculating the amount of reactant B required to completely react with A then comparing that amount with the amount of B available one can determine the

limiting reactant

which reactant controls the amount of product formed in a chemical reaction

limiting reactant

in the chemical reaction represented by the equation wA +xB -->yC+zD a comparison if the number of moles of A to the number of moles of C would be an

mole ratio

a balanced chemical equation allows one to determine the

mole ratio of any two substances in the reaction

a chemist interested in the efficiency of a chemical reaction would calculate the

percentage yield

what is the ratio if the actual yield to the the theoretical yield multiplied by 100%

percentage yield

a chemical equation is balanced when the

same number of each kind if atom appears in the reactants and in the products

in what kind if reaction do two or more substances combine to form a nee compound

synthesis reaction

if the percentage yield is equal to 100% then

the actual yield is equal to the theoretical yield

which of the following would not be studied in the branch of chemistry called stoichiometry

the amount of energy required to break the ionic bonds in calcium flouride

in the chemical equation wA+xB-->yC + zD if one knows the mass of A and the molar masses of A B C D one can determine

the mass of any of the reactants or products

which of the following would be investigated in reaction stoichiometry

the mass of potassium required to produce a known mass of potassium chloride