Stoichiometry
What is avogodros number?
6.022x1023
C3H8 + O2 -> H2O + CO2
Combustion
What series do we use to help us determine if a single displacement reaction will take place?
Activity series
What reactant should you use to determine the amount of product formed?
Limiting reagent
Equation that goes from mass to moles?
n = m/M
moles = mass (g) divided by molar mass (g/mol)
HCl + NaOH -> NaCl + H2O
Neutralization ( or double displacement)
Name the two activity series we can use.
Metal and Halogen (Non-metal)
What is the mole ratio between chlorine gas and hydrochloric acid in the following:
CH4 + 4Cl2 --> CCl4 + 4HCl
4:4
or 1:1 if reduced
How do we convert the number of particles of something to the number of moles?
moles = particles/ avogodros number
The reactant that is entirely used up during the reaction and dictates the quantity of product formed
Limiting Reactant
2H2 + O2 -> 2H2O
Synthesis
Would the following reaction take place?
Ni + Fe(NO3)3 -> ?
No reaction
Nickel is less reactive than iron
Fe+O2--->Fe2O3
Balance and find the mole ratio of Iron to Oxygen
What is 4:3
Calculate the mass of 1.12 moles of Nitrogen gas
31.4 g
Reminders:
- nitrogen gas is N2 not just N
- Don't forget your significant digits!
CaCO3 -> CaO + CO2
Decomposition
Which is more reactive F2 or Cl2?
F2 (Fluorine gas)
Ammonium nitrate decomposes into dinitrogen monoxide gas and water. Determine the amount of water produced if 25.0 g of ammonium nitrate decomposes.
What is 11.3 grams H2O
How many moles are in 6.022 x 1023 atoms of sodium
1 mol
Zn + CuCl2 -> ZnCl2 + Cu
Single displacement
Place the following elements in order from least to most reactive
Na
Fe
Mg
H2
H2 < Fe < Mg < Na