Question

Which of the following experimental errors would cause a student to overestimate

the number of moles of CO2 produced during the gasimetry reaction?
A) Using a 6M HCI solution instead of 3M HCI.
OB) The eudiometer contained air bubbles.
OC) Adding 20 mL of HCI to the reaction flask instead of 10 mL.
OD) Using 0.95 g of calcium carbonate instead of 1.0 g.
OE) None of the above would inflate the calculation of the moles of CO2.

Answer 1

Using 0.95 g of calcium carbonate instead of 1.0 g would cause a student to overestimate the number of moles of CO2 produced during the gasimetry reaction.

Step-by-step explanation:

The experimental error that would cause a student to overestimate the number of moles of CO2 produced during the gasimetry reaction is option OD) Using 0.95 g of calcium carbonate instead of 1.0 g. In a chemical reaction, the stoichiometric ratio between reactants and products is crucial. If the correct amount of calcium carbonate is not used, it will result in an incorrect calculation of the moles of CO2 produced.

For example, if the reaction requires 1.0 g of calcium carbonate to produce a certain amount of CO2, but the student uses only 0.95 g, the actual amount of CO2 produced will be less than expected. This would lead to an overestimation of the moles of CO2.

Learn more about Experimental errors affecting moles of CO2 in gasimetry reaction