Question

an antacid tablet releases co₂ gas when placed in water. the co₂ was collected during an experiment to determine the average amount of gas released per tablet. results were recorded as follows: chart with columns: trial, no. tablets, water, co₂ collected; rows: trial 1 (1, 100 ml, 15 ml), trial 2 (2, 100 ml, 25 ml), trial 3 (3, 100 ml, 40 ml), trial 4 (4, 100 ml, 58 ml) what conclusion can be drawn from this experiment? options: 1. the greater the volume of water used, the less co₂ produced. 2. the greater the volume of water, the more co₂ produced. 3. the more antacid tablets used, the less co₂ produced. 4. the more antacid tablets used, the more co₂ produced.

Explanation:

1. Analyze the variables: In the experiment, the volume of water is constant (100 mL) across all trials, while the number of antacid tablets varies.
2. Observe the trend: As the number of tablets increases (from 1 to 4), the volume of \( CO_2 \) collected also increases (15 mL to 58 mL).
3. Evaluate the options:

• The first two options are incorrect because the volume of water is constant, so we can't conclude about the relationship between water volume and \( CO_2 \) production from this data.
• The third option is incorrect because the data shows more tablets lead to more \( CO_2 \), not less.
• The fourth option matches the trend: more tablets → more \( CO_2 \) produced.

Answer:

The more antacid tablets used, the more \( CO_2 \) produced.