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 18:00
Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water
Answers: 2
Chemistry, 22.06.2019 14:10
16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
Answers: 2
Chemistry, 22.06.2019 20:00
Carbon-14 undergoes radioactive decay in the reaction above. determine the type of radiation emitted in this reaction and describe what is happening to the nucleus during this reaction.
Answers: 2
Chemistry, 22.06.2019 20:30
Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206
Answers: 2
1 g of unknown acid is dissolved in 100.0 mL deionized water. Half the solution is transferred to a...
History, 03.03.2021 21:50
Mathematics, 03.03.2021 21:50
Physics, 03.03.2021 21:50
Mathematics, 03.03.2021 21:50
Mathematics, 03.03.2021 21:50
English, 03.03.2021 21:50
History, 03.03.2021 21:50
Mathematics, 03.03.2021 21:50
Chemistry, 03.03.2021 21:50
Mathematics, 03.03.2021 21:50
Mathematics, 03.03.2021 21:50
Mathematics, 03.03.2021 21:50