1. Calculate the concentration of the lactate ion in a solution that is 0.100 M in...

1. Calculate the concentration of the lactate ion in a solution that is 0.100 M in lactic acid (CH3CH(OH)COOH, pKa = 3.86) and 0.080 M in HCl.

2. For the generic equilibrium HA(aq) ⇌ H+(aq) + A−(aq), which of these statements is true?

	If you add the soluble salt KA to a solution of HA that is at equilibrium, the pH would increase.
	If you add the soluble salt KA to a solution of HA that is at equilibrium, the concentration of A− would decrease.
	The equilibrium constant for this reaction changes as the pH changes.
	If you add the soluble salt KA to a solution of HA that is at equilibrium, the concentration of HA would decrease.

Expert Solution

queen_honey_blossom answered 5 months ago

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