Homework Answers
pH = - log C
a) normal rain pH = 5.6
rain in the eastern United states = 3.8
5.6 = - log C
C = 10^-5.6
3.8 = - log C
C = 10^-3.8
10^5.6 / 10^3.8
= 10^1.8
| 10^1.8 times as acidic as normal rain |
b)
pH of water in a lake = below 5
normal water pH = 5.6
C = 10^5.6 / 10^5
C = 10^0.6
| 10^0.6 times as acidic as normal water |
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What is
acidity and what are the compounds controlling it?
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the concentration of hydrogen ions (H+ or protons) in a solution. We
use pH (potential of H+) as a scale of acidity and this can be
calculated as below:
pH =
-log10[H+] =
log10
(1/[H+])
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What is
acidity and what are the compounds controlling it?
Acidity is a measure of
the concentration of hydrogen ions (H+ or protons) in a solution. We
use pH (potential of H+) as a scale of acidity and this can be
calculated as below:
pH =
-log10[H+] =
log10
(1/[H+])
Q1. Figure 10.3 shows you a range
of pH in some common liquids. Pick 2 liquids (one each from acidic
and basic solutions) and compare the molarity of
[H+] in...
Learning Goal: To calculate pH and use it as a measure of acidity The pH expresses the molar concentration of hydronium ions in an aqueous solution on a logarithmic scale pH = -log[H30'] H-061 10 pH As pH decreases, acidity increases. As pH increases, acidity decreases. Acidic solution: pH <7 • Neutral solution: pH = 7 Basic solution: pH > 7 Review co Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid. What...
) The acidity or alkalinity of a solution is described using the pH scale. Basically, pH (which stands for "potential of hydrogen") is a measure of how many H+ ions there are in a solution. As we saw in the previous question, the more H*s there are in a solution, the more acidic it is. The formula for calculating pH is given below: In words, pH equals the negative log base ten of the hydrogen ion concentration. Solution X has...
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2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
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