GRADE 10 CHEMISTRY TOPIC ACID BASE INQUIRY EXPERIMENT

GRADE 10: CHEMISTRY TOPIC: ACID & BASE INQUIRY EXPERIMENT Date: Friday, April 5 th, 2013

PUZZLERS Created by: Mr. Luoma

ELEMENT OF THE DAY

ELEMENT OF THE DAY What metal is used in doorknobs of hospitals for its microbial properties? to help prevent the spread of infection

ELEMENT OF THE DAY: COPPER Atomic Number: 29 Protons, 29 Electron Atomic Weight: 63. 546 Location: Group 11 Can be toxic, but rarely occurs One of the first metals used “Bronze Age”

ELEMENT OF THE DAY: COPPER Why is Copper cool to learn about? Creates bronze when alloyed with tin Bronze Age vs. Copper Alloy Age Creates brass when alloyed with zinc Used in jewellery, but tarnishes slowly Used for electrical wiring

ELEMENT OF THE DAY: COPPER Properties of Copper Stop at 5: 19 http: //www. youtube. com/watch? v=kop 1 s. Wz. TK-I

CHEMISTRY QUIZ #4 You will need: Writing Utensil Copy of the Quiz Copy of the Periodic Table of Elements with White Sheet of the back Good luck!

ACID & BASE PH EXPERIMENT Complete the Materials, Methods, and Hypothesis sections on the experiment handouts (1 per group) Show teacher for approval Create a table to record your results Gather the materials needed for your experiment Wear your safety goggles Complete the experiment & record your Results Clean up after your experiment Fill out the Discussion and Conclusion sections and hand in for marking When fully completed, start working on the Chemistry Unit Test Review

MATERIALS FOR EXPERIMENT Available Substances Available Materials Vegetable Oil Hydrochloric Acid Bleach Water Soapy Water Salt Water Baking soda Milk of Magnesia Drain cleaner Vinegar Test tubes & racks Beakers Pipettes or eye droppers p. H Scale Litmus Paper Universal Indicator p. H Meters ON Science 10 Textbook (pages 229 – 234)

ENJOY YOUR WEEKEND!!

SUPPORTING DOCUMENTS ON Science 10 Textbook Pages: 229 - 234 Chapter 4 Power Point for ON Science 10 Slides: 23 -29

HOMEWORK ON Science 10 Textbook Pg. 235 #1 -8

HOMEWORK ANSWERS Pg. 235 1. acidic 2. p. H meter or indicator(s) 3. Diagram should show the concentration of hydrogen ions decreasing as p. H increases. 4. Example: Each colour of litmus paper changes in opposite p. H ranges. A negative test with both is required to confirm neutrality.

HOMEWORK ANSWERS Pg. 235 5. Example: 6. Any three of: apple, blackberry, blueberry, cherry, mountain cranberry, grape, plum, pomegranate, raspberry, cabbage, hydrangea flowers, black tea 7. phenolphthalein 8. 7. 6 to 8. 2