Which of the following buffers will have the lowest pH?
A) a solution containing 0.20 M HC2H3O2 and 0.20 M NaC2H3O2
B) a solution containing 0.25 M HC2H3O2 and 0.15 M NaC2H3O2
C) a solution containing 0.15 M HC2H3O2 and 0.25 M NaC2H3O2
D) They all have the same pH.
B
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Innovations in agriculture have increased food supply. This has allowed human populations to grow to approximately ________ by the end of the agriculture period
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Explain the geography of a milkshed in terms of Von Thünen's model?
What will be an ideal response?