Using density and volume to determine mass. Determine the volume of a mass of aluminum using the water displacement method. Record the initial volume of water and the final volume of water. Calculate the volume of the aluminum. From a table in the textbook, research the density of aluminum and record the density. Re-arrange the given formula, D=M/V in order to determine the mass. M=V x D. Record the determined mass. Check your answer against the given density of aluminum by substituting the calculated mass and volume into the density formula and compare the answer to the listed density. Work two other practice problems.

Complete the problem from Wed. "Determining the molar mass of a compound". Arrive at the term gram formula mass. Record the GFM arrived at and elicit that when the GFM is massed out in grams, this represents a mass of one mole. Elicit from Avogadro's work, the number of molecules present in one mole of this substance (acetic acid). Discuss the organic analgesic aspirin. Work through a series of steps to determine the molar mass of aspirin and how many grams would be present in 0.509 moles of aspirin? Set up an "if-then" equation for Ben to more easily use.

Work a lab experiment which is used to determine the density of a few solid objects, like wood blocks of varying mass. State the formula to be used and record the mass and volume of the solids to the nearest 0.01 units. Determine the density of water by measuring a mass of water properly, and recording the volume in ml using a graduated cylinder. Record the density of the water. From experience, will the wood block sink or float? Compare the density of the block to that of water, and arrive at a hypothesis regarding floating and density. Test the hypothesis using a larger, different block of wood and present a conclusion.

Review density definition and density formula. Discuss density in terms of molecule arrangement in a substance.
Develop how to solve the following problem: A solid substance measures a mass of 13.5 grams. A measure of the length, width, and height product indicates a volume of 5 cubic centimeters. Determine the volume and indicate the proper units. Use a table of density values for elements and determine what the element is. Solve a related problem with a given mass and volume. Is the second substance the same element as the first? Determine the density and element density table. Discuss how to measure the density of an irregular shaped object by using water displacement method. Conclude that an object will displace a volume of water equal to the volume of the solid. Work a problem to explain the procedure.

Outline the required information and steps needed to determine the molar mass of a given substance, acetic acid. Given the structural formula,determine the molecular formula and indicate each element in formula and the number of each as shown by a subscript. Determine the gram molecular weight (the gram formula weight) and relate the definition of molar weight to the GMW. Calculate Avogadro's number of particles in the formula weight

Define and discuss what are derived units. Elicit from examples that derived units will contain 2 SI units of measurement, such as length and time. Discuss volume and density of solid objects. Relate how liquid volume is measured in liters or milliliters, which have an equivalent unit in solid volume measurement, the cubic centimeter.
Define and discuss density and use examples to show the relationship; between mass and volume with density.

Discuss and define derived units. Determine that derived units consist of 2 base unit measurements and is a combination of both units. Examples would be speed, derived from distance and time. Discuss both solid and liquid volume measurements. Determine that liquid volume measurement is recorded in liters and/or milliliters. Determine that 1 cubic centimeter in solid measurement is equal to 1 ml of liquid measurement. One liter of liquid has a volume of 1000 cubic centimeters which is also 1000 milliliter (ml)/ Introduce density as mass per unit volume. Discuss why equal volumes of different substances can possess different densities.

Define atomic weight and mass, indicate the units as Atomic Mass Units (Dalton's). Calculate the atomic mass of a molecule of water by looking up the atomic mass of each atom in the molecule, using the correct formula for the molecule and adding up the total atomic mass units based on the isotopes. From the molecular formula, define a gram molecular formula. Elicit that this number represents one Mole of a substance. Describe that one mole of a substance contains 6.02 x 10^23 molecules of a substance and he figure is called Avogadro's number. Stress that this number represents one mole of any substance, atoms molecules or particles. Have Ben calculate the atomic mass of iodine solid, a diatomic molecule and indicate it as One Gram Molecular Weight. Determine the number of iodine particles in one mole of iodine vapor.

Introduce a definition to explain chemical derived units of matter measurement. Relate how kinetic molecular motion determines temperature of a substance, the kinetic energy of a substance. outline Fahrenheit, Celsius, and Kelvin measurements. Discuss zero Kelvin and the formula to convert Celsius into Kelvin temperature

Complete discussion on temperature measurement. Determine that temperature is a quantitative measure and that it is a measure of the average kinetic energy of a substance. Define kinetic energy as it involves molecular movement. Increasing the molecular motion of particles by adding heat will cause an increase in the measure of temperature. Discuss the 3 scales in currents use, the Fahrenheit, Celsius, and Kelvin. Use the formula to convert Celsius into Kelvin units, no degrees used in Kelvin. Introduce derives units in chemistry.