Chapter 9 chemistry Victory Charter
If, in the reaction A + B >>> C + D, the quantity of B is insufficient to react with all of A
B is the LR
The measured amount of product obtained from a chemical reaction is the
actual yield
Molar mass can be used to relate
mass of reactant to moles of reactant, moles of product to mass of product, mass of product to moles of product
Stoichiometry is the branch of chemistry that deals with elements in compounds and with reactants and products in chemical reactions, focusing on
mass relationships
A balanced chemical equation allows you to determine
mole ration of any two substances in the reaction
The efficiency of a chemical reaction is best expressed by the
percentage yield
in stoichiometry, molar mass is used to
relate the mass of a substance to the amount in moles of that substance
The coefficients in a chemical equation represent the
relative number of moles of reactants and products
Reaction stoichiometry is based on chemical equations and
the law of conservation of mass
In the chemical equation wA + xB >>> yC+zD, if you know the number of moles of A that react, you can determine
the number of moles of each reactant and product
The number of significant figures in an answer to a stoichiometry problem is determined only by
the number of significant figures of any measured quantities in the problem
If, in the reaction A + B >>> C + D, the quantity of B is insufficient to react with all of A,
the reaction stops