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A student needs to prepare a buffer solution with a pH of 4.5 using acetic acid (pKa = 4.76) and its conjugate base sodium acetate. The student has 100 mL of 0.1 M acetic acid and has access to sodium acetate. What mass of sodium acetate (in grams) should the student add to the solution to achieve the desired pH?
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Jan 22
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Chemical reactions
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A 25 mL solution of 0.1 M AgNO3 is mixed with a 50 mL solution of 0.05 M NaCl. What is the mass of AgCl that will be produced if a reaction occurs? (Assume the reaction goes to completion.)
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Jan 22
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Chemical reactions
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How does stereotype threat contribute to social erasure?
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Jan 20
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Psychology
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What is a disease that can be spread from animals to humans called?
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Jan 6
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Science
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