1 g of unknown acid is dissolved in 100.0 mL deionized water. Half the solution is transferred to a flask, where 1 or 2 drops of phenolphthalein indicator are added. The solution is then titrated to the endpoint with 0.5 M NaOH. The neutralized half is combined with the remaining half to create a buffer solution with a pH of 5.04. What is the Ka of the acid and the pKa?
Answers: 2
Chemistry, 21.06.2019 19:10, cristinaledford3696
Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.
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Chemistry, 22.06.2019 21:20, jordan2875
If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied
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Chemistry, 22.06.2019 22:30, COOLIOMARIS
What three things does a balanced equation show you?
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1 g of unknown acid is dissolved in 100.0 mL deionized water. Half the solution is transferred to a...
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