Question

What volume of the water in liters contains 250 mgmg of benzene? (Assume that the density of the solution is 1.0 g/mLg/mL.)

Answer 1

Answer:

$555,555.6\text{ mL}$

Explanation:

Here,we want to get the volume of water that contains 250 mg of benzene

From the question,we have it that the percentage by mass of benzene in water is 4.5 * 10^-5%

This corresponds to the 250 mg (this is same as 250/1000 = 0.25 g)

Let us say the mass of the water that contains the benzene is x g

4.5 * 10^-5% = 0.25 g

100% = x g

To get x, we have it that:

$\begin{gathered} x\text{ = }\frac{1\text{ }\times0.25}{4.5\times10^{-7}} \\ \\ =555,555.56\text{ g} \end{gathered}$

We have to get the volume from this

Mathematically, volume will be mass divided by density (given as 1 g/mol)

Thus,we have the volume as:

$555,555.6\text{ mL}$