#Question id: 384
#Unit 1. Molecules and their Interaction Relevant to Biology
A solution was prepared by dissolving 0.02 moles of acetic acid (HOAc; pKa = 4.8) in water to give 1 liter of solution. What is the pH? To this solution was then added 0.008 moles of concentrated sodium hydroxide (NaOH). What is the new pH? (In this problem, you may ignore changes in volume due to the addition of NaOH).
#Question id: 385
#Unit 1. Molecules and their Interaction Relevant to Biology
In which reaction below does water not participate as a reactant (rather than as a product)?
#Question id: 386
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following properties of water does not contribute to the fitness of the aqueous environment for living organisms?
#Question id: 387
#Unit 1. Molecules and their Interaction Relevant to Biology
For a weak acid with a pKa of 6.0, What would be the ratio of acid to salt at pH 5.
#Question id: 388
#Unit 1. Molecules and their Interaction Relevant to Biology
Calculate the pH of a solution prepared by mixing 2.0 mL of a strong acid solution of pH=3.0 and 3.0 mL of a strong base of pH=10.0.
#Question id: 389
#Unit 1. Molecules and their Interaction Relevant to Biology
A weak acid HA has a pKa of 5.0. If 1.0 mol of this acid and 0.1 mol of NaOH were dissolved in one liter of water, what would the final pH be?