Assume that all of the CO2 is present as H2CO3. For an experiment involving what happens to the growth of a particular fungus in a slightly acidic medium, a biochemist needs 250 mL of an acetate buffer with a pH of 5.12. An analytical procedure for separating certain components of a dietary supplement requires that they be dissolved in a buffered solution having a pH of 3.80. Calculate the minimum number of grams of pure acid and the pure sodium salt needed to make 750 mL of the buffer. Think about the receptors responsible for causing muscles to contract and relax.
Hormones are typically present in very low concentrations.
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