In the antacid film canister lab, which type of data would be most helpful to collect in order to analyze experimental error?

• A. The color change of the solution during the reaction
• B. The brand name of the antacid used
• C. The mass of the antacid tablet before and after the reaction
• D. The temperature of the laboratory throughout the day

Answer: (C)

Verified step by step guidance

1. Understand that experimental error analysis involves identifying sources of variability or uncertainty in measurements that affect the accuracy and precision of results.
2. Recognize that the mass of the antacid tablet before and after the reaction directly relates to the amount of reactant consumed, which is a quantitative measurement critical for calculating reaction progress and yield.
3. Note that qualitative data like color change or brand name do not provide precise numerical values needed to assess error magnitude or consistency.
4. Consider that temperature fluctuations might influence reaction rates but are less directly connected to measuring the exact amount of reactant used, unless temperature is specifically controlled or measured for its effect.
5. Conclude that collecting the mass of the antacid tablet before and after the reaction provides concrete numerical data to calculate differences, identify inconsistencies, and thus analyze experimental error effectively.