Question

Step 1: Gather Materials
Gather the following materials for this experiment. When you are done with this experiment, set the materials aside. You will use them again in the experiment for Part 3.
clear 12-ounce plastic cups (7 cups total)
effervescent antacid tablets (1 package, no more than 20)
room temp tap water
pen or pencil
stopwatch or a watch or clock with a second hand

Step 2: Perform the Surface Area Experiment
Follow the step-by-step procedure to conduct your experiment. Record and describe your data. You will use this data for Part 2.

Step-by-Step Procedure
Here is the step-by-step procedure.

Three conditions of substance:
Whole, Broken (pieces), Crushed (powder)
For each condition, perform 3 trials of the following:
Drop substance into container.
Add 150 ml of room temperature water.
Observe until tablet completely dissolves.
(Hint- This can be when you don't see the tablet anymore, or if the majority of the bubbling has stopped (i.e. the reaction finished).
Record the time in seconds in the data table.
Repeat Steps a-c. Record your data.

Record Data and Notes
Part 1: Record your data from the procedure. You can record your data with any method you choose, but a table is provided as a starting point. If you use another data collection method, remove the table and insert it here. If you noticed anything you want to document during your investigation, use this space to jot down any notes or additional observations. (If needed, add more rows or columns to the table.)

Trial #1 Data
Whole Tablet
Broken Tablet
Crushed Tablet
Time to Dissolve






Notes/ Observations








Trial #2 Data
Whole Tablet
Broken Tablet
Crushed Tablet
Time to Dissolve






Notes/ Observations








Trial #3 Data
Whole Tablet
Broken Tablet
Crushed Tablet
Time to Dissolve






Notes/ Observations








Step 2: Questions
Review the data from the temperature experiment and the graph you created. Examine the results, and then answer the following questions to analyze the results. (Add additional space as needed for any item.)

What is the independent variable?





What is the dependent variable?





Analyze the data. Are there any statistical features in your data, including any patterns, sources of error within the study, or any limitations that may have impacted your research? What are they? How could they impact your research? Explain your response.





Suggest an everyday activity that will mirror your results of this activity.





This question has two parts.
What quantitative relationships were present in your data?





What mathematical calculations were needed before you could draw conclusions? Provide an example.




Step 2: Perform the Surface Area Experiment
Follow the step-by-step procedure to conduct your experiment. Record and describe your data. You will use this data for Part 2.

Step-by-Step Procedure
Here is the step-by-step procedure.

Three conditions of substance:
Whole, Broken (pieces), Crushed (powder)
For each condition, perform 3 trials of the following:
Drop substance into container.
Add 150 ml of room temperature water.
Observe until tablet completely dissolves.
(Hint- This can be when you don't see the tablet anymore, or if the majority of the bubbling has stopped (i.e. the reaction finished).
Record the time in seconds in the data table.
Repeat Steps a-c. Record your data.

Record Data and Notes
Part 1: Record your data from the procedure. You can record your data with any method you choose, but a table is provided as a starting point. If you use another data collection method, remove the table and insert it here. If you noticed anything you want to document during your investigation, use this space to jot down any notes or additional observations. (If needed, add more rows or columns to the table.)

Trial #1 Data
Whole Tablet
Broken Tablet
Crushed Tablet
Time to Dissolve






Notes/ Observations








Trial #2 Data
Whole Tablet
Broken Tablet
Crushed Tablet
Time to Dissolve






Notes/ Observations








Trial #3 Data
Whole Tablet
Broken Tablet
Crushed Tablet
Time to Dissolve






Notes/ Observations








Step 2: Questions
Review the data from the temperature experiment and the graph you created. Examine the results, and then answer the following questions to analyze the results. (Add additional space as needed for any item.)

What is the independent variable?





What is the dependent variable?





Analyze the data. Are there any statistical features in your data, including any patterns, sources of error within the study, or any limitations that may have impacted your research? What are they? How could they impact your research? Explain your response.





Suggest an everyday activity that will mirror your results of this activity.





This question has two parts.
What quantitative relationships were present in your data?





What mathematical calculations were needed before you could draw conclusions? Provide an example.





Answers

GPT-4o mini
Here’s a structured layout for completing the experiment based on the steps and materials you've provided:

### Data Collection Tables

#### Trial #1 Data

| Condition | Time to Dissolve (seconds) |
|-------------------|----------------------------|
| Whole Tablet | |
| Broken Tablet | |
| Crushed Tablet | |

**Notes/Observations:**

- ________________________________________
- ________________________________________

---

#### Trial #2 Data

| Condition | Time to Dissolve (seconds) |
|-------------------|----------------------------|
| Whole Tablet | |
| Broken Tablet | |
| Crushed Tablet | |

**Notes/Observations:**

- ________________________________________
- ________________________________________

---

#### Trial #3 Data

| Condition | Time to Dissolve (seconds) |
|-------------------|----------------------------|
| Whole Tablet | |
| Broken Tablet | |
| Crushed Tablet | |

**Notes/Observations:**

- ________________________________________
- ________________________________________

### Questions

1. **What is the independent variable?**
- The independent variable is the surface area of the effervescent antacid tablets, which is manipulated by using whole, broken, and crushed tablets.

2. **What is the dependent variable?**
- The dependent variable is the time taken for the tablets to dissolve completely in water.

3. **Analyze the data.**
- **Statistical Features/Patterns:**
- You might find that crushed tablets dissolve faster than broken, which in turn dissolve faster than whole tablets.
- **Sources of Error:**
- Inconsistencies in how "broken" and "crushed" were defined or executed (e.g., size of pieces may vary).
- Variability in the water temperature or volume used could affect dissolution rates.
- **Impact on Research:**
- These errors can lead to inaccurate measures of how surface area affects dissolution since the experiment may not target only the variable intended.

4. **Suggest an everyday activity that will mirror your results of this activity.**
- An activity that mirrors these results is adding sugar to a cup of coffee. Granulated sugar (whole) will dissolve slower than powdered sugar (crushed), which demonstrates how surface area can impact the rate of dissolution.

5. **What quantitative relationships were present in your data?**
- The relationship between the surface area of the tablet and the time taken to dissolve was quantitatively evident, where smaller surface areas (whole tablet) took longer to dissolve compared to larger surface areas (crushed tablet).

6. **What mathematical calculations were needed before you could draw conclusions?**
- You might calculate the average dissolution time for each condition (whole, broken, crushed) by adding the times from the three trials for that condition and dividing by three. For example:
\[
\text{Average Time for Whole Tablet} = \frac{\text{Time Trial 1} + \text{Time Trial 2} + \text{Time Trial 3}}{3}
\]

### Conclusion

Upon completing the data collection and analysis, you'll have a clear understanding of how surface area affects the dissolution rate of effervescent antacid tablets. This experiment can be a basis for deeper exploration into reaction rates and surface area effects in various chemical reactions.

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