Gout Causes Foods

Concentration or balance problems math help please?
Gout, a disease that causes inflammation of the joints and The pain is caused by the formation of sodium urate crystals NaC5H3N4 in tendons, cartilage and ligaments. Sodium urate plasma out of blood when the Uric acid levels are abnormally high. This could happen after eating too rich and too much alcohol consumed This explains why gout is sometimes called the "disease of kings". If the sodium concentration in plasma is of 0,140 billion, and sodium urate K_sp is 5.76 * 10 ^ -8, so the concentration minimum of uric acid could lead to precipitation of uric acid hateful?
The balance C5H3N4O3Na <-------> C5H3N4O3-+ Na + requires K = [C5H3N4O3-] [Na +] let x = mol / l of sodium uric acid that dissolves: it will produce x mol / L and uric acid x mol / L of Na +. But there arleady some Na + balance so [Na +] = 0.140 x + and [uric acid] x = 5.76 x 10 ^ -8 = (0.140 + x) (x), since x must be small compared than 0,140, we can assume x = 0.140 + X This gives an approximate equation 5.76 x 10 ^ -8 = (0.140) (x) = x [uric acid] = 4.11 x 10 ^ -7 M
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