Citric acid (which we can abbreviate as H3Cit) is a triprotic carboxylic acid with the following acidity constants pKa1 = 3.128, pKa2 =4.761, and pKa3 = 6.396. a) A solution is made by adding lemon juice to water until the pH is 2.20. Assuming all the acidity is from dissociation of citric acid, find the total concentration of citrate species (i. e., TOTCit) and the concentration of HCit2-.

Examine the false statement. compounds are the smallest unit of an element that occur most commonly in nature. select the rewording of the statement that is true. a: atoms are the smallest unit of an element that commonly occur in nature. b: molecules are the smallest unit of an element or compound that commonly occur in nature. c: molecules are the smallest unit of a compound that occur on the periodic table. d: compounds are the smallest unit of an element that occur on the periodic table