|
|
| |
 |
| |
Unit 2: Stoichiometry
Guiding Questions:
- How are dosages determined?
- How are toxins measured and controlled?
- Which is better: eating beans and rice at separate meals or together?
What you should learn:
- Because atoms cannot, practically, be measured individually and because atoms of the same element can have different masses which occur in various proportions, the use of the weighted average and molar quantities are used
- The dimension analysis method for handling quantities involved in a chemical reaction is based on proportions of the substances involved and is an important tool that allows for the measurement of all quantities in a chemical reactions - mass, volume, concentration, energy, etc.
- Stoichiometric calculations allow one to make important measurements to ensure the health of people and animals.
More Specifically...:
IB Objectives: SL
- Distinguish between atomic mass, molecular mass and formula mass (units g mol-1)
- Define and calculate molecular mass
- Use dimension analysis to convert between moles, grams, atoms, ions and molecules
- Calculate percent composition
- Determine empirical and molecular formulas from experimental data
- a. From the percent composition of other experimental data
- b. Percent composition from formula of a compound
- c. Molecular fomula when given the empirical formula and molar mass
- Reading Reactions
- Distinguish between coefficients and subscripts
- Use correct state symbols
- Balance reactions
- Identify mole ratios
- State that chemicals react according to stoichiometric ratios (mole ratios)
- Use mole ratios to calculate the moles and masses of reactants and products from given data
- Solve Stoichiometry problems to convert the following
- a. mole-mole;
- b. mass-mass;
- c. mole-mass;
- d. mass-volume;
- e. mole-volume; and
- f. volume-volume.
- Identify the limiting reactant (reagent) in a reaction.
- Determine the limiting reactant and calculate theoretical yield and excess reactant.
- Solve percent yield problems
- Identify and define the solute and solvent of a solution
- Define concentration and denote w/ [ ]
- Calculate concentrations using molarity
- Solve dilution problems
- Solve stoichiometry problems involving concentration
- Solve acid-base titration problems
- Balance redox reactions
- Solve redox titration problems
Lecture Notes:
Assignments:
Labs:
Resources:
|
| |
Stoichiometry
Reactions
|
| |
Back to Top
|
|
