Stoichiometry CP Chem

what is one mole equal to? a. 6.022x10^23 b. 22.4 L c. molar mass of an element d. all of the above

d

the reactant that was not completely consumed in the reaction, the reactant that produced the most amount of product

excess reactant

the reactant that was completely consumed in the reaction, the reactant that produced the least amount of product

limiting reactant

http://www.chemistry.wustl.edu/~coursedev/Online%20tutorials/Plink/limreag/probsetlr.htm

limiting reactant problems

what can cause % yield to be under 100%

losing some of the substance or overheating the substance so too much is taken away

the atomic mass of all elements in a compound added together (or the atomic mass of a specific element if it's by itself - x2 if it's a diatomic)

molar mass

would can cause % yield to be over 100%

not letting all the the reactants completely dissolve/evaporate/boil away to cause the weight to be larger than it should be

what is the molar mass of calcium hydroxide? a. 74.1 b. 74.10 c. 76.2 d. 76.20

b

what is the molar mass of aluminum sulfate? 342.17 a. 325.19 b. 344.14 c. 342.17 d. 324.19

c