A liquid mixture containing $10\mathrm{.}0wt\%n-$octane and the balance $n-$decane flows into a tank mounted on a balance.

The mass in kg indicated by the scale is plotted against time.

That data fall on a straight line that passes through the points $(t=3\mathrm{.}00$min,$m=125kg)$ and $(t=12\mathrm{.}00,m=211kg).$

Estimate the volumetric flow rate of the liquid mixture.

$\frac{L}{m}in$

What does the empty tank weigh?

N