Question

In an experiment you are asked to react hydrochloric acid with sodium hydroxide. When measuring the volume of the reactants, which instrument would give the greatest precision? 100 mL Graduated cylinder 250 mL Erlenmeyer flask 100 mL Beaker 200 mL Beaker

Answer 1

Answer : The correct option is, 100 ml Graduated cylinder.

Explanation :

Graduated cylinder : It is measuring cylinder that is used to measure the volume of a liquid. It has a narrow cylindrical shape. The marked line drawn on the graduated cylinder shows the amount of liquid that has been measured.

Erlenmeyer flask : It is also called as a conical flask or titration flask. It is a laboratory flask that has flat bottom, a conical body and a cylindrical neck. It is commonly used for the titration.

Beaker : It is a type of laboratory equipment that has cylindrical shape and it is used for the mixing, stirring, and heating of chemicals.

As per question, the graduated cylinders are more accurate and precise than Erlenmeyer flasks and beakers.

So, the correct option is, 100 ml Graduated cylinder.

Answer 2

I believe the correct answer would be the first option. It is 100 mL graduated cylinder that is the best apparatus that could be used. It has the smallest graduation as compared to the other choices. It can measure up to 0.1 mL.