Units and Conversions
What is 1000?
(1000mL = 1L)
Chemical formula for trinitrogen monochloride
What is N3Cl?
(Covalent bonds = pay attention to prefixes)
What is the reactant of the chemical equation and where is it located?
What is the original substance located on the left side of the equation?
The number of moles of product created from the reaction of 3 moles of hydrogen and excess oxygen in the equation below:
2H2 + O2 → 2H2O
What is 3 moles of water?
The number of kg in a g
What is 0.001?
(1g = 0.001kg)
(1000g = 1kg)
Chemical formula for potassium sulfide
What is K2S?
(When ions K = K+1 and S = S-2)
What is the product of a chemical equation and where is it located?
What is the new substance located on the right side of the equation?
In order to calculate the amount of product, this must be determined if given the quantities of all reactants
What is the limiting reactant?
What is molarity with units of moles/liter?
Chemical formula for aluminum oxide
What is Al2O3?
(When ions Al = Al+3 and O = O-2)
What must be done in order to use a chemical reaction? (Hint: conservation of mass)
What is balance the equation?
The grams of product produced from 10.0g of oxygen reacted with excess carbon monoxide.
2CO + O2 → 2CO2
(MM O2 = 32g/mol)
(MM CO2 = 44g/mol)
What is 27.5g CO2?
What is the molar mass/molecular weight/gram atomic weight?
Chemical formula for iron (III) iodide
What is FeI3?
(When ions Fe = Fe+3 and I = I-1)
What does a subscript of a substance in a chemical equation represent? For example MgCl2
What is the number of atoms of that element in a molecule of that substance?
(There is one atom of Mg and 2 atoms of Cl in every molecule of MgCl2)
Find and balance the following equation
__Rb + __O2 → _____
What is 4Rb + O2 → 2Rb2O ?
(When they become ions Rb = Rb+1 and O = O-2)
If 2 moles of N2 is reacted with 3 mole of H2 which is the limiting reactant?
N2 + 3H2 → 2NH3
What is H2?
(H2 will form 2 moles of NH3)
(N2 will form 4 moles of NH3)
Conversion that allows for calculations between different substances and where it is found
What is a mole to mole conversion from the coefficients in a balanced chemical equation?
Chemical formula for silver phosphate
What is Ag3PO4?
(When ions Ag = Ag+1 and PO4 = PO4-3)
What does the coefficients of a chemical equation represent?
What is the number of moles of that substance?
Find and balance the following equation
__NaBr + __CaF2 → _____ + _____
What is 2NaBr + 1CaF2 → 2NaF + 1CaBr2 ?
(Double replacement reaction! Na = Na+1, Br = Br-1, Ca = Ca+2, and F = F-1)
Titration labs determine this quantity of the titrant in order to determine moles of titrant used in the reaction
What is the volume of titrant used?