1. Review the Content Slides Acids and Bases on the D2L
site.
2. Complete the Teaching Idea “Concept Questions for Chemistry using PhET” posted by Trish Loeblein on the pH Scale simulation at PHET (http://phet.colorado.edu/en/simulation/ph-scale). On your blog post the answers with your scientific explanations from the “Clicker Questions pH Scale” posted by Trish.
2. Complete the Teaching Idea “Concept Questions for Chemistry using PhET” posted by Trish Loeblein on the pH Scale simulation at PHET (http://phet.colorado.edu/en/simulation/ph-scale). On your blog post the answers with your scientific explanations from the “Clicker Questions pH Scale” posted by Trish.
Clicker
Questions pH Scales
1)
The color of a solution identifies if it is an
acid, base, or neutral solution.
a.
False. Many
acids, base, or neutral solutions comes in different colors, for example,
orange juice, lemon juice and soda are acids but they are different colors.
2)
Which solution is basic?
a.
D. More than one. Both the solutions B (blood) and C (custom
liquid) have a pH above 7 making them basic.
3)
Which solution is acidic?
a.
C. Acid solution form hydrogen ions (H+),
while basic solution forms hydroxide (OH-).
4)
Which solution is basic?
a.
B. Solution B have more OH-
5)
Which solution is acidic?
a.
D. More than one. Solution A is Soda pop while solution B is
Coffee, both of which is acidic
6)
How will adding water affect the pH?
a.
A. Increase the pH. By adding water, it is diluting the acidic
solution, which makes the pH go up.
7)
How will equal amount of water affect the pH?
a.
B.Decrease the pH. By adding water to the basic
solution, it is diluting the solution, making the pH go down.
8)
What is the order from most acidic to most
basic?
a.
A. A (6.50pH) B (7.40 pH) C(12.06 pH).
9)
What is the order from most acidic to most
basic?
a.
E. CAB. On the pH scale 7 is neutral, anything
below 7 is considered acidic, and anything above 7 is basic.
10)
If spit has a pH = 7.4, what does that tell you
about the water equilibrium? 2H2O «
OH- + H3O+
a.
A. Something was added that made the equilibrium
shift left. The equilibrium is shifted
left because the pH of the spit is 7.4 which means that something was added to
the water.
3. Complete the Teaching Idea “Intro to Strong and Weak
Acids and Bases” posted by Chris Bires on the Acid-Base Solutions simulation (http://phet.colorado.edu/en/simulation/acid-base-solutions)
and post on your blog your data and answers to the questions posed.
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