Chapter U4.83, Problem 1TAI

Interpretation Introduction

Interpretation:

Whether molarity calculation can be used to identify a toxic substance must be explained.

Concept introduction:

Molarity of a solution is the moles of solute per 1 L solution.

Answer to Problem 1TAI

Molarity calculation can be used to identify toxic substance.

Explanation of Solution

From molarity, number of moles of solute present in 1L can be obtained.

  $n=M\times V$

Now, mass of the solute can be calculated from number of moles and molar mass as follows:

$m=n\times M.M$

Here, M.M is molar mass.

Now if this amount is lesser than the observed mass of the solute in a solution, then it is clear that some toxic substance is present in the solution.