+
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Cards In This Set
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What is a base?
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Substance that can bind with free H+ and
remove it from the solution. The more H+
a substance can bind with, the stronger
the base.
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What is K?
K=_________
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K is the dissociation constant, which the
extent of dissociation of a given acid is
constant.
K=[H+][HCO3-]/[H2CO3]
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What is pH?
How is it expressed mathmatically?
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PH is the hydrogen ion concentration of a solution expressed numerically
It is the negative log of H+ concentration
pH=log1/[H+]
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A change in 1 pH value says what about [H+]?
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Represents a 10 fold change in [H+]
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If the pH of one solution is 7 and the other is 6, then what does that mean about H+?
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The solution with pH=6 would hold 10 times more H+
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If a liter of H2O contains 10-7 moles of H+, then what is its pH?
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PH=7
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What scale is pH on? What is considered neutral at 25 degrees celsius?
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0 to 14
neutral is pH=7
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For H2O, what is neutrality? what does this mean?
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When [H+]=[OH-]
the concentration of which varies with temperature
so, a pH of 7 is not always neutral
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As temperature increases, pH_______.
For example, at 25 degrees celsius pH is 7 but at 30 degrees celsius it is at _______.
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Decreases
pH=6.8
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What solutions are considered acidic?
basic/alkaline?
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Solutions with a pH below neutral (7)
solutions with a pH above neutral (7)
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What does the pH of blood average at?
Is venous blood pH (greater than or less than) arterial blood?
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PH=7.4
it is less than
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What is considered acidosis?
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When blood pH falls below 7.35
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What is considered alkalosis?
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When blood pH falls above 7.45
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What blood pH is considered death?
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Below 6.8 or above 8.0
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______ pH needs to be constantly monitored and regulated because the body is constantly producing H+.
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Body fluid
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