Chemistry, 09.07.2019 15:50 dtilton2003
An unknown compound, x, is thought to have a carboxyl group with a pka of 2.0 and another ionizable group with a pka between 5 and 8. when 75 ml of 0.1 m naoh is added to 100 ml of a 0.1 m solution of x at ph 2.0, the ph increases to 6.72. calculate the pka of the second ionizable group of x.
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Chemistry, 22.06.2019 09:20
Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?
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Chemistry, 22.06.2019 12:10
Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.
Answers: 1
Chemistry, 22.06.2019 14:30
Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false
Answers: 1
An unknown compound, x, is thought to have a carboxyl group with a pka of 2.0 and another ionizable...
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