The following pictures represent solutions that contain a weak acid HA and/or its potassium salt KA.Unshaded spheres represent H atoms and shaded spheres represent A- ions.(K+,H3O+,OH-,and solvent H2O molecules have been omitted for clarity. ) 
-Which solution has the lowest pH?
Definitions:
Hedonic Treadmill
A theory suggesting that people maintain a relatively constant level of happiness despite changes in fortune or achievements due to quickly adjusting expectations.
Happiness Or Unhappiness
A state of well-being characterized by emotions ranging from contentment and satisfaction to joy, or the lack thereof.
Constant Levels
Conditions or values in an experiment or study that are kept the same throughout the procedure to ensure that the results are due to the variable being tested.
Repressing Anger
Definition: The psychological process of consciously suppressing or holding back feelings of anger, which can have various emotional and health implications.
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