Find the area of the triangle with vertices P(4, 5), Q(4, -2) and R(-6, 2).

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#Question id: 377

#Section 4: Fundamentals of Biological Engineering

The aqueous solution with the highest pH is:

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#Question id: 378

#Section 4: Fundamentals of Biological Engineering

Which of the following statements about buffers is true?

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#Question id: 379

#Section 4: Fundamentals of Biological Engineering

A compound has a pKa of 7.4. To 100 mL of a 1.0 M solution of this compound at pH 8.0 is added 30 mL of 1.0 M hydrochloric acid. The resulting solution is pH:

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#Question id: 380

#Section 4: Fundamentals of Biological Engineering

The Henderson-Hasselbalch equation:

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#Question id: 381

#Section 4: Fundamentals of Biological Engineering

Consider an acetate buffer, initially at the same pH as its pKa (4.76). When sodium hydroxide (NaOH) is mixed with this buffer, the:

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#Question id: 382

#Section 4: Fundamentals of Biological Engineering

The molar ratio of sodium acetate to acetic acid in a buffer solution with a pH OF 5.76 is 10:1. Assuming the total buffer concentration is 2.2 X 10^-2 mol/L, how many grams of sodium acetate (m.w. 82) and how many grams of acetic acid (m.w. 60) should be used in preparing a litre of the solution?