13) Bromthymol blue (BTB) is a chemical indicator that is blue all alone. When combined with a basic solution, it turns green as a solution becomes more acidic it turns yellow in an acidic solution. Fill in what color you think bromthymol blue would be in each of the situations in the chart. If solution color is given, simply provide a logical, possible pH value based on the outcomes. Fill in the missing ions as well! Situation pH ВТВ сolor Ion present Water directly out of tap 7.2 pH after exhaled air is blown through a straw into water for 5 5.1 H+ min. pH after a snail has lived in water for three days Very Yellow pH with 2ml of bleach added to the water Very Blue 5.0 pH with instant coffee added to the water pH after an aquatic plant is grown in water for three days in bright sunlight Light Blue OH- 14) Is BTB a chemical indicator? 15) What then does it "indicate"? 16) Based on the data above, why does drinking coffee cause stomach pain for some indivudals? 17) What effect does carbon dioxide have on tap water? 18) Is bleach an acid or a base?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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13) Bromthymol blue (BTB) is a chemical indicator that is blue all alone. When combined with a basic
solution, it turns green as a solution becomes more acidic it turns yellow in an acidic solution. Fill in
what color you think bromthymol blue would be in each of the situations in the chart. If solution
color is given, simply provide a logical, possible pH value based on the outcomes. Fill in the missing
ions as well!
Situation
pH
BTB color
Ion present
Water directly out of tap
7.2
pH after exhaled air is blown through a straw into water for 5
5.1
H+
min.
14
pH after a snail has lived in water for three days
Very Yellow
pH with 2mL of bleach added to the water
Very Blue
5.0
pH with instant coffee added to the water
pH after an aquatic plant is grown in water for three days in
bright sunlight
Light Blue
OH-
14)Is BTB a chemical indicator?
15) What then does it "indicate"?
16) Based on the data above, why does drinking coffee cause stomach pain for some indivudals?
17) What effect does carbon dioxide have on tap water?
火
18) Is bleach an acid or a base?
acer
&
4.
5
7
8.
e
r
t
y
g.
Transcribed Image Text:13) Bromthymol blue (BTB) is a chemical indicator that is blue all alone. When combined with a basic solution, it turns green as a solution becomes more acidic it turns yellow in an acidic solution. Fill in what color you think bromthymol blue would be in each of the situations in the chart. If solution color is given, simply provide a logical, possible pH value based on the outcomes. Fill in the missing ions as well! Situation pH BTB color Ion present Water directly out of tap 7.2 pH after exhaled air is blown through a straw into water for 5 5.1 H+ min. 14 pH after a snail has lived in water for three days Very Yellow pH with 2mL of bleach added to the water Very Blue 5.0 pH with instant coffee added to the water pH after an aquatic plant is grown in water for three days in bright sunlight Light Blue OH- 14)Is BTB a chemical indicator? 15) What then does it "indicate"? 16) Based on the data above, why does drinking coffee cause stomach pain for some indivudals? 17) What effect does carbon dioxide have on tap water? 火 18) Is bleach an acid or a base? acer & 4. 5 7 8. e r t y g.
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