Chapter SH, Problem 17.1APP

To determine

To calculate:The volume of seawaterthat would contain $1.0\text{ g}$ of fluoride ions.

Answer to Problem 17.1APP

  $769\text{ L}$ of seawatercontains $1.0\text{ g}$ of fluoride ions.

Explanation of Solution

Given data:

The concentration of fluoride ions ${\text{F}}^{-}$ in seawater is $1.3\times {10}^{-3}\text{ g/L}$ .

Formula used:

The concentration of a solute in a solvent is the amount of solute dissolved per liter of the solvent.

Calculation:

As per the problem,

The concentration of fluoride ions ${\text{F}}^{-}$ in seawater being $1.3\times {10}^{-3}\text{ g/L}$ signifies that $1.3\times {10}^{-3}\text{ g}$ of ${\text{F}}^{-}$ is present in $1\text{ L}$ of seawater.

Therefore, volume of seawater containing $1.0\text{ g}$ of ${\text{F}}^{-}$

  $=\frac{1.0\text{ g}}{1.3\times {10}^{-3}\text{ g/L}}\approx 769\text{ L}$

Conclusion:

  $769\text{ L}$ of seawatercontains $1.0\text{ g}$ of fluoride ions.