1. INQUIRY ACTIVITY #2
SNC 2D1

2. Discuss: are acids and bases IONIC or MOLECULAR? Why?
PROBLEM
You are presented with 6 solutions in test tubes:
Solution 1 - HCl, diluted Solution 2 - NaOH, diluted
Solution 3 - tap water Solution 4 - distilled water
Solution 5 – NaCl + water Solution 6 – table sugar + water
Some physical properties: clear, colourless solutions
Problem: A. Classify each solution as ionic or molecular, with 2 points of evidence.
B. Classify each solution as either an acid or a base, with 2 points of evidence.
Discuss: are acids and bases IONIC or MOLECULAR? Why?
Disucss: How does your evidence support Arrhenius’ definition of acids & bases?

3. Research/Observation
INQUIRY PROCESS
Research/Observation
Question
Theory
Hypothesis
Test

4. FRIDAY OCT. 25, 2013: MONDAY, OCT. 21, 2013:
EXPECTATIONS
FRIDAY OCT. 25, 2013:
Use the given equipment + materials to address this problem and submit your lab report at the end of class:
(water, conductivity tester, scoopulas, stir sticks, magnifying glass, beakers + graduated cylinders, test tubes, test tube racks, various indicators: methyl orange, bromthymol blue, phenolphthalein, red+blue litmus paper, methyl red, grid paper, 6 different solutions)
MONDAY, OCT. 21, 2013:
Make use of the computer lab today only!

5. Include the following headings:
REPORT
Include the following headings:
Research/Observation
Question (How?, Why?)
Theory/Model (suggest an answer or procedure)
Hypothesis (formal & detailed) or Prediction (informal: “I think…”)
Test showing Evidence (‘results’ can include tables, notes, diagrams, etc.)
Analysis (include calculations, graphs, etc. here)
Conclusions and Inferences (refer to results/analysis, answer questions,
pose new questions, critique your inquiry process, suggest further investigations)
* Remember to cite your sources