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How many mL of a 12.5 M solution are needed to make 100 mL of a 1.30 M solution? Your Answer: Answer units

How many mL of a 12.5 M solution are needed to make 100 mL of a 1.30 M solution? Your Answer: Answer units

Chemistry
Chemistry
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Dilution Problem Example** **Question:** How many mL of a 12.5 M solution are needed to make 100 mL of a 1.30 M solution? **Your Answer:** - [ ] mL **Answer:** - [ ] units --- This problem requires using the concept of dilution, which is often used in chemistry to achieve a desired concentration of a solution. The formula used for dilution calculations is: \[ C_1V_1 = C_2V_2 \] Where: - \( C_1 \) = initial concentration (12.5 M) - \( V_1 \) = volume of the initial concentration you need to find - \( C_2 \) = final concentration (1.30 M) - \( V_2 \) = final volume (100 mL) Students should solve the equation to determine \( V_1 \), the volume needed from the 12.5 M solution.
Transcribed Image Text:**Dilution Problem Example** **Question:** How many mL of a 12.5 M solution are needed to make 100 mL of a 1.30 M solution? **Your Answer:** - [ ] mL **Answer:** - [ ] units --- This problem requires using the concept of dilution, which is often used in chemistry to achieve a desired concentration of a solution. The formula used for dilution calculations is: \[ C_1V_1 = C_2V_2 \] Where: - \( C_1 \) = initial concentration (12.5 M) - \( V_1 \) = volume of the initial concentration you need to find - \( C_2 \) = final concentration (1.30 M) - \( V_2 \) = final volume (100 mL) Students should solve the equation to determine \( V_1 \), the volume needed from the 12.5 M solution.
### Crystallization Temperature Data for KNO₃ The table below displays the crystallization temperature (°C) of potassium nitrate (KNO₃) at varying quantities (grams) across three different trials. | Grams of KNO₃ | Trial 1 | Trial 2 | Trial 3 | |---------------|--------|--------|--------| | 2 | 28 | 27 | 29 | | 4 | 42 | 44 | 45 | | 6 | 65 | 67 | 62 | | 8 | 79 | 80 | 78 | #### Graph Description To the right of the table is a blank graph grid, designed to plot the crystallization temperature (°C) against the grams of KNO₃ for a visual representation of the data collected across the three trials. - **X-axis:** Grams of KNO₃ (ranging from 2 to 8 grams). - **Y-axis:** Crystallization Temperature (°C). This setup allows students or researchers to visualize how the crystallization temperature changes with varying amounts of potassium nitrate.
Transcribed Image Text:### Crystallization Temperature Data for KNO₃ The table below displays the crystallization temperature (°C) of potassium nitrate (KNO₃) at varying quantities (grams) across three different trials. | Grams of KNO₃ | Trial 1 | Trial 2 | Trial 3 | |---------------|--------|--------|--------| | 2 | 28 | 27 | 29 | | 4 | 42 | 44 | 45 | | 6 | 65 | 67 | 62 | | 8 | 79 | 80 | 78 | #### Graph Description To the right of the table is a blank graph grid, designed to plot the crystallization temperature (°C) against the grams of KNO₃ for a visual representation of the data collected across the three trials. - **X-axis:** Grams of KNO₃ (ranging from 2 to 8 grams). - **Y-axis:** Crystallization Temperature (°C). This setup allows students or researchers to visualize how the crystallization temperature changes with varying amounts of potassium nitrate.
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