Outline the steps used to determine the molecular formula of a compound given the % concentrations of elements and the molecular mass. Solve a given problem. Outline stepwise how to determine th molecular formula when the % composition is given along with the molecular mass. This is a 7 step solution

Define empirical formulas. Indicate that 2 different compounds, like acetylene and benzene can have the same empirical formula but different molecular and structural formulas.
Work examples of determining empirical formulas from the % composition. Introduce molecular formulas determination from the empirical formula

Correct homework problems. Convert moles to mass formulation.
Examine how to determine the molar mass of a compound and solve some problems from the text. Convert moles of a compound to mass. Discuss empirical and molecular formulas. Discuss percent composition of elements in a compound, and how to determine the percent compostion. Work a few problems converting elements in a compound to percent composition of those elements based on moles.

Solve problems converting moles to particles and particles to moles. Discuss the molar mass meaning and how to calculate the MM. Graph the mass of an atom vs the mol, then calculate the slope to determine the molar mass and gram molecular mass and the atomic mass in AMU.

Complete a chemical equation by writing the total ionic equation and the net ionic equation.
Introduce units of measurement for large objects. Units include dozen, gross, ton, ream. Introduce the concept of the mole as a unit of measure for extremely small objects, like atoms, molecules, functional units, electrons, and dust particles.
Introduce Avogadro's number and from where it is derived. Elicit a definition of Avogadro's number and how the unit is used to measure a set amount of any substance. Work a problem converting moles to particles and particles to moles

Review and correct HW question. View lab results which have settled overnight in beaker and discuss. Introduce the third of the double replacement reaction types, the formation of a gas.
Write a molecular formula on the board and have Joshua complete the total ionic and net ionic equation and indicate the gas formed.
Explain that this reaction is a dual reaction, a double replacement followed by a decomposition.
Begin both reactions on the board

Working from a word equation depicting a double replacement reaction and the state of both reactants and products, show how to write the total ionic equation after balancing. From the total ionic equation, examine how to write the net ionic equation. Do this for 2-3 textbook problems. In the lab proceed with a mini lab to form a precipitate from magnesium sulfate and sodium hydroxide. Prepare to complete the conclusions and questions after the precipitate settles over night.

Define and describe the terms solution, homogenous, mixture, aqueous, solute, and solvent.
Outline how molecular compounds may dissolve in water. Describe and outline on the board how many will dissociate into ions.
Examine how ionic compounds will dissociate when dissolved.
Use examples to show that two aqueous solutions of ionic compounds may react with each other to form products, one of which must be a gas, water, or a precipitate.

Based on an assignment to write chemical equations, determine the products formed from a variety of reactions. Review with examples how to properly name both ionic and covalent compounds, as well as the use of polyatomic ions.

Concentrate on single and double replacement reactions. Define each based on equation examples written on the board. Use the table of activities of elements to determine if a reaction will proceed from reactants to products. Write 3 double replacement reactions on the board and determine that for this type of reaction to occur, a product must be either water, a gas, or a solid.