Say you have 2.50 M CaSO, solution and you need 300. mL of 0.400 M CaSO, How can you prepare this dilution? * Take 32 mL of a 2.50 M solution and pour into a flask. Add water until total volume equals 200 ml. Take 48 mL of a 2.50 M solution and pour into a flask. Add water until total volume equals 300 ml.
Say you have 2.50 M CaSO, solution and you need 300. mL of 0.400 M CaSO, How can you prepare this dilution? * Take 32 mL of a 2.50 M solution and pour into a flask. Add water until total volume equals 200 ml. Take 48 mL of a 2.50 M solution and pour into a flask. Add water until total volume equals 300 ml.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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![### How to Prepare Dilutions
#### Problem:
Say you have a 2.50 M \( \text{CaSO}_4 \) solution and you need 300. mL of 0.400 M \( \text{CaSO}_4 \). How can you prepare this dilution?
#### Instructions:
Choose the correct method from the following options:
1. **Option 1:**
- Take 32 mL of a 2.50 M solution and pour into a flask.
- Add water until total volume equals 200 mL.
2. **Option 2:**
- Take 48 mL of a 2.50 M solution and pour into a flask.
- Add water until total volume equals 300 mL.
3. **Option 3:**
- Take 1875 mL of a 2.50 M solution and pour into a flask.
- Add water until total volume equals 300 mL.
4. **Option 4:**
- Take 120 mL of a 2.50 M solution and pour into a flask.
- Add water until total volume equals 300 mL.
##### Explanation:
The correct answer will involve using the dilution formula \(C_1V_1 = C_2V_2\) where:
- \(C_1\) is the concentration of the stock solution.
- \(V_1\) is the volume of the stock solution needed.
- \(C_2\) is the concentration of the final solution.
- \(V_2\) is the volume of the final solution.
This formula is used to determine the relationship between the concentrations and volumes before and after the dilution.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F607cced0-c3e1-4338-aeaf-f61d5cbda073%2F9a19240f-a28f-4239-a98f-879cec6e8836%2F96hocn9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### How to Prepare Dilutions
#### Problem:
Say you have a 2.50 M \( \text{CaSO}_4 \) solution and you need 300. mL of 0.400 M \( \text{CaSO}_4 \). How can you prepare this dilution?
#### Instructions:
Choose the correct method from the following options:
1. **Option 1:**
- Take 32 mL of a 2.50 M solution and pour into a flask.
- Add water until total volume equals 200 mL.
2. **Option 2:**
- Take 48 mL of a 2.50 M solution and pour into a flask.
- Add water until total volume equals 300 mL.
3. **Option 3:**
- Take 1875 mL of a 2.50 M solution and pour into a flask.
- Add water until total volume equals 300 mL.
4. **Option 4:**
- Take 120 mL of a 2.50 M solution and pour into a flask.
- Add water until total volume equals 300 mL.
##### Explanation:
The correct answer will involve using the dilution formula \(C_1V_1 = C_2V_2\) where:
- \(C_1\) is the concentration of the stock solution.
- \(V_1\) is the volume of the stock solution needed.
- \(C_2\) is the concentration of the final solution.
- \(V_2\) is the volume of the final solution.
This formula is used to determine the relationship between the concentrations and volumes before and after the dilution.
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