Solutions
**pH Reading Guide
Please read these pages in our online textbook, then complete the reading guide questions.
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Use this ck-12 link to read about acids, watch the video as well
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Use this ck-12 link to read about bases, watch the video as well
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Use this ck-12 link to read about pH
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Use this cK-12 link to read about Indicators
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Complete pH Reading Guide Questions
Questions:
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What is an acidic solution? Explain below and also list properties of acids.
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Sour
- Contains H+ Ions
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Corrosive
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What is a basic solution? Explain below and also list properties of bases.
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Bitter
- Contains OH- Ions
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Do Not react with metals
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What is a neutral solution?
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Solution that contains equal concentrations of acids and bases.
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When the pH is 7 and the pOH is also 7
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What is pH?
A logarithmic Scale of Acidity, measuring the power of hydrogen concentration in the water.
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What is the numerical value of the pH for a neutral solution?
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7
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What is the numerical range of the pH for an acidic solution?
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0-6
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What is the numerical range of the pH for a basic solution?
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8-14
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What are two common acidic substances? List the chemical formula & common name (you can find these in the video on the acid page)
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HCl (Hydrochloric Acid)
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HNO3 (Nitric Acid)
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What are two common neutral substances?
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Water
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Blood
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What are two common basic substances? List the chemical formula & common name (you can find these in the video on the bases page)
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NaOH (Sodium Hydroxide)
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KOH (Potassium Hydroxide)
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What is an indicator?
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A solution that indicates a change in pH. i.e. BTB
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How is an indicator used in chemistry?
An indicator can be use to measure the pH of a solution
- Complete the following table by recognizing the pattern.
[H+] | pH | Acid or Base or Neutral | |
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a. | \(1 x 10^{-5} M\) | 5 | acid |
b. | \(1 x 10^{-7} M\) | 7 | neutral |
c. | \(1 x10^{-12} M\) | 12 | base |
d. | \(1 x10^{-2} M\) | 2 | acid |
e. | \(1 x10^{-8} M\) | 8 | base |
f. | \(1 x 10^{-11} M\) | 11 | base |
g. | \(1 x10^{-6} M\) | 6 | acid |
h. | \(1 x 10^{-14} M\) | 14 | base |
i. | \(1 x 10^{-1} M\) | 1 | acid |
j. | \(1 x10^{-4} M\) | 4 | acid |
Created: June 5, 2023