Question 3 The biological systems of various marine life forms may be affected by the pH of the sea water. Figure 2 is a sketch of the speciation diagram of carbonic acid system in sea water. 0.8 0.6 HCO co 2 0.4 0.2 8. 10 12 14 PH Use the information from Fig 2 to answer the following questions. a) What species are in the water at pH 10? b) Determine expressions for al in terms of er and in terms of K. for carbonic acid c) Estimate the acid dissociation constant (Ka) value for the reaction: HCO,= CO, 2-+ H* Fraction

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Question 3
The biological systems of various marine life forms may be affected by the pH of the sea
water. Figure 2 is a sketch of the speciation diagram of carbonic acid system in sea water.
0.8
0.6
HCO
co 2
0.4
0.2
8.
10
12
14
pH
Use the information from Fig 2 to answer the following questions.
a) What species are in the water at pH 10?
b) Determine expressions for al in terms of er and in terms of Ka for carbonic acid
c) Estimate the acid dissociation constant (Ka) value for the reaction:
HCO,= CO, 2- + H*
Fraction
Transcribed Image Text:Question 3 The biological systems of various marine life forms may be affected by the pH of the sea water. Figure 2 is a sketch of the speciation diagram of carbonic acid system in sea water. 0.8 0.6 HCO co 2 0.4 0.2 8. 10 12 14 pH Use the information from Fig 2 to answer the following questions. a) What species are in the water at pH 10? b) Determine expressions for al in terms of er and in terms of Ka for carbonic acid c) Estimate the acid dissociation constant (Ka) value for the reaction: HCO,= CO, 2- + H* Fraction
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