Question

when taking ph measurements of solutions, why is it important to stir thoroughly after adding each reagent? select one: mixing helps keep the solution components from contaminating the ph meter. a ph meter can only measure ions that are flowing past the meter at a fast speed. mixing helps prevent precipitation of insoluble salts out of solution. mixing helps ensure that the measured ph is reflective of the entire solution.

Explanation:

Stirring thoroughly after adding a reagent evenly distributes the substances in the solution. This ensures that the pH - meter measures a representative value for the whole solution, rather than just a local area with an un - mixed concentration of ions.

Answer:

Mixing helps ensure that the measured pH is reflective of the entire solution.