Question $1$

Arterial blood flow rate and urea concentration going into a kidney dialysis cartridge are $165$

mL$/$min and $1\mathrm{.}75$ mg$/$mL respectively.

The venous blood flow rate and urea concentration leaving the cartridge are $150$ mL$/$min and

$1\mathrm{.}68$ mg$/$mL respectively.

a$.$ What is the rate of water removal from the blood in mL$/$min$?$ Assume steady$-$state, no

reaction. b$.$ What is the rate of urea removal from the blood in mg$/$min$?$ Assume steady$-$state, no

reaction. c$.$ The dialyzing fluid enters at $1420$ mL$/$min$,$ and exits at the same rate. What is the urea

concentration in the exit stream $($mg$/$mL$)?$