A solution was prepared by dissolving 0.02 moles of acetic acid (HOAc; pKa = 4.8) in water to give 1 liter of solution. What is the pH? To this solution was then added 0.008 moles of concentrated sodium hydroxide (NaOH). What is the new pH? (In this problem, you may ignore changes in volume due to the addition of NaOH).

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#Question id: 12965

#Unit 10. Ecological Principles

Phytoplankton is most frequently found in which of the following zones?

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#Question id: 10742

#Unit 10. Ecological Principles

Interior species

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#Question id: 9206

#Unit 9. Diversity of Life Forms

To better comprehend the magnitude of current extinctions, it will be necessary to ________.

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#Question id: 592

#Unit 1. Molecules and their Interaction Relevant to Biology

The expression: Vmax = k2[E]total applies to

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#Question id: 12581

#Unit 10. Ecological Principles

Which of the following causes an increase in the intensity of UV radiation reaching the Earth?