ATAMS BLAST DIGITAL AGENDA10 – 11 College

Prep Chemistry BKAUFFMAN 6 – 9 February 2012

DO NOW: M: Download the three homework assignments that were due last week and the six step problem solving procedure PDF. Today is a day for you to catch up on your missing assignments. Solve: How many grams of CaCl2·2H2O are needed to produce 3.5 L of a 0.1 M solution?W: Log in to Achieve3000. On the left hand side of your screen, click Mail. Read the e-mail from me and then respond to it, following the instructions given.Th: Put everything away off of your desk except for something to write with and your calculator. Today is the unit exam over solutions.

California Standards:

Std 6a: Solute vs Solvent Std 6c: Vars affecting rate of solutionStd 6b: Solution Process Std 6d: Units of solutions Std IE: Expt & Investigation

Essential Questions:

What is a solution and what are the properties of solutions? How do we compare solutions? What variables affect solubility and the rate of solution?

LEARNING OBJECTIVES FOR STUDENTS:Given: Compass learning activities, information and practice packet, a laboratory procedure, and direct

instructionthe learner will:

accurately describe solutions, their properties, and conduct calculations related to solutions

by: analyzing one solution important to their day to day lives, solving problems relative solutions using the procedures outlined in class and showing their work, and answering questions on solutions and their properties, and completing a unit exam on solutions concepts.

color coded flow chart on next page

Individual Instruction:• Catch up on your compass learning

quizzes.• Read through the packets from the

collaborative station and copy the flow charts for solving each type of concentration problem.

Direct Instruction:• Ask questions about the

concentration packets• Notes on molarity problems• Demonstration

Collaborative Station:• As a group, work through the packet

on Concentrations (posted on HW page).

• Complete your lab write-ups and prelabs for this week.

Classification of Matter• Matter: anything that takes up space and has mass• Pure substance: only one type of matter is present—it is the same throughout• Element: pure substance that cannot be broken down into smaller components by non-

nuclear methods• Compound: composed of two or more elements in a fixed ratio and (arrangement of

atoms when it is solid)• Mixture: Two or more pure substances added together• Homogeneous: same throughout (homogenized—grind up the solid particles into small

enough parts, the milk is the same throughout)• Heterogeneous: 2 different phases. • Solutions: made up of a solvent and solute. The solvent is the compound that is present

in the greatest amount. The solute is the compound that is present in lesser amounts. Alloys: solution made of two or more metals.

Classification of Matter

• Matter: anything that takes up space and has a resistance to a change in motion (inertia or mass)

• Pure substance: something that is made up of only one type of matter.• Elements: smallest building blocks of matter that cannot be divided further without nuclear

reactions• Compound: combination of 2+ elements that are arranged in a certain order by fixed ratios.• Mixture: combination of two or more pure substances that can be separated by non-chemical

means.• Homogeneous mixture: the same throughout (homogenized milk: chop the fat and proteins

up into small particles that can be evenly dispersed in the milk.• Solution: two or more compounds mixed uniformly throughout. The component in the largest

amount is called the solvent. The component in the lesser amount is called the solute. Diet Pepsi: solvent: water; solutes: carbon dioxide, caramel color, aspartame, phosphoric acid, potassium benzoate, caffeine, citric acid, and natural flavors)

• Alloy: one or more elements or compounds dissolved in a solid metal as the solvent. • Heterogeneous mixture: 2+ different regions or phases within the mixture.