Problem 5
Identify each substance as an Arrhenius acid, an Arrhenius base, or neither. a) \(\mathrm{NaOH}\) b) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) c) \(\mathrm{H}_{3} \mathrm{PO}_{4}\)
Problem 5
Pyridine (C \(5 \mathrm{H}_{5} \mathrm{~N}\) ) acts as a Brønsted-Lowry base in water. Write the hydrolysis reaction for pyridine and identify the Brønsted- Lowry acid and Brønsted-Lowry base.
Problem 5
If \(55.60 \mathrm{~mL}\) of \(0.2221 \mathrm{M}\) HCl was needed to titrate a sample of \(\mathrm{NaOH}\) to its equivalence point, what mass of \(\mathrm{NaOH}\) was present?
Problem 6
The methoxide ion \(\left(\mathrm{CH}_{3} \mathrm{O}^{-}\right)\) acts as a Brønsted-Lowry base in water. Write the hydrolysis reaction for the methoxide ion and identify the Brønsted-Lowry acid and Brønsted-Lowry base.
Problem 6
Write a chemical equation for the ionization of each base and indicate whether it proceeds \(100 \%\) to products or not. a) \(\mathrm{NH}_{3}\) b) \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{~N}\) c) \(\mathrm{Mg}(\mathrm{OH})_{2}\)
Problem 6
Write the balanced chemical equation between phosphoric acid and barium hydroxide.
Problem 6
If \(16.33 \mathrm{~mL}\) of \(0.6664 \mathrm{M} \mathrm{KOH}\) was needed to titrate a sample of \(\mathrm{HC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\) to its equivalence point, what mass of \(\mathrm{HC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\) was present?
Problem 6
Identify each substance as an Arrhenius acid, an Arrhenius base, or neither. a) \(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}\) b) \(\mathrm{HNO}_{2}\) c) \(\mathrm{Ba}(\mathrm{OH})_{2}\)
Problem 6
Write the reverse of the reaction for the autoionization of water. It is still an acid-base reaction? If so, label the acid and base.
Problem 7
Write the balanced chemical equation for the reaction of each acid and base pair. a) \(\mathrm{HCl}+\mathrm{C}_{5} \mathrm{H}_{5} \mathrm{~N}\) b) \(\mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4}+\mathrm{NH}_{3}\) c) \(\mathrm{HNO}_{2}+\mathrm{C}_{7} \mathrm{H}_{9} \mathrm{~N}\)
