Question

Why should all solid be dissolved before transfer of the solution from the 250mL beaker to the volumetric flask?

Answer 1

Transferring solutions without fully dissolving the solute will result in an inaccurate concentration.

Explanation:

When you transfer the solution before allowing all solid chemicals to dissolve, it is possible that it will remain in the beaker. That will lower the concentration of the chemical in the solution in the flask because there will be fewer moles of chemical in the solution and concentration (in molarity) is calculated by the equation:

`M = (mol)/V`

In this equation, `M` represents concentration in molarity, `mol` represents the number of moles dissolved in the solvent, and `V` represents the total volume of the solution.