Uric acid is one metabolic end product as well as is excreted from the body in urine. The acid dissociation constant of uric acid is Ka = 4.0 x 10-6 M. The pH of a urine sample is 6.00. Define what is the ratio of urate ion to uric acid in the urine?
1. 0.25
2. 1.5
3. 4.0
4. 6.0
5. 24