A patient in kidney failure has a buildup of urea in the blood to a concentration of 0.0200 M. In a hemodialysis unit, 500.0 mL of blood was removed from the patient and dialyzed against 8.250 L de dialysate solution containing no urea. Assuming the dialysis reached equilibrium, what will the molar (M) post-dialysis blood concentration of urea be when it is returned to the patient?
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A patient in kidney failure has a buildup of urea in the blood to a concentration of 0.0200 M. In a hemodialysis unit, 500.0 mL of blood was removed from the patient and dialyzed against 8.250 L de dialysate solution containing no urea. Assuming the dialysis reached equilibrium, what will the molar (M) post-dialysis blood concentration of urea be when it is returned to the patient?
To calculate the post-dialysis blood concentration of urea, we can use the following equation:
C2 = C1 * V1 / (V1 + V2)
where:
- C1 is the initial concentration of urea in the blood (0.0200 M)
- V1 is the volume of blood removed from the patient (500.0 mL)
- V2 is the volume of dialysate solution (8.250 L)
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