Answer
2.5 mL/min
Work Step by Step
Use standard conversion factors to restate the ratio in the requested units of measure. Reduce fractions to express in lowest terms.
$\frac{750mL}{5hr}=\frac{750mL}{5hr}\times\frac{1hr}{60min}=\frac{750mL}{300min}=\frac{750\div150\ mL}{300\div150\ min}=\frac{5\ mL}{2\ min}$
Restate the improper fraction as a mixed number.
$\frac{5\ mL}{2\ min}=2.5\ mL/min$
