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The mole and mole calculations
Chemical Reactions
Stoichiometry
Connections to real life
100
Defenition: Is and SI unit for the amount of substance. Defenition:The isotope canbon atom that comprises 99 percent of naturally occuring atom. Defenition: The mass of a specific isotope most often expressed in unified atomic mass units. Defenition: A unit of mass that describes the mass of an atom. Exactly of a carbon atom.
What is Mole, Carbon 12, Atomic mass, and atomic mass unit?
100
Is the process by which one or more substances are changed into one or more different substances.
What is chemical reaction?
100
It is a branch of chemistry that deals with the relative quantities of the products and reactants in a chemical reaction
What is Stoichiometry?
100
I am producing bikes and I have 15 seats and 20 wheels The lack of wheels does not let me produce more bikes. This would be the limiting reactant
Which part of Stoichiometry would be this?
200
The number of particles in a mole, named by Amede Avogado
What is Avogado´s number
200
It is the written form of the products and reactants of a chemical reaction 2Ca+O(2)= 2CaO
What is a Chemical Equation?
200
Actual Yield/Theorectical Yield times 100
What is percetage yield?
300
Used to know the percentage by mass of a particular element in a chemical compound. Mass due to specific comp./Total molar mass of compound. Carbon= 2.63/3.58= 73.46 percent
What is percentage composition?
300
The total mass of reactants must equal the total mass of products for any given chemical reaction.
What does the law of conservation of mass state?
300
Is the reactant that has less of its own that limits the amount or quantity of the product. Is the reactant of which you have the most or more off, that does not limit the amount of product produced. To find it you have to grab the two reactants and use the grams to grams procedure with one of the products and the one that gives you the least grams is the limiting reactant
What is the limiting reactant and excess reactant?
400
Different from empirical formula, it is the actual formula of the molecular compound. Total mass of chemical compound/ The sum of the atomic masses of the elements Multiply answer times subscripts BH(3) 27.67/13.84= 2 B(2)H(6)
What is Molecular formula?
400
Double Displacement AB+CD=AD+CB Single Displacement A+BC=AC+B Non metal replaces anion Metal replaces cation Synthesis A+B=AB Oxide of metal plus water will give a hydroxide of the metal Oxide of non metal will give an acid Combustion is when in a chemical reaction, one of the reactants is Oxygen alone Decomposition AB= A+B
What are the five types of reactions?
400
1/22.4 x Mole ratio x Molar mass of Unknown/ 1 mol Mole ratio is the coefficients of the unknown and the given arranged in ratio form.
Which procedure you would use to transfer from liters to grams
500
Consists of the symbol the elements combined in a compound with subscripts showing the smalles whole number mole ratio of the different atoms in the compound 78.1 gB x 1 mol B/10.51gB= 7.22 mol B
What is Empirical Formula?
500
2Ca+O(2)=2CaO The type of reaction is synthesis
What is this type of reaction?
500
1 mol/given x mole ratio x Unkwown/1 mol
What is the procedure from grams to grams?