**Understanding Percent Error in Scientific Measurements**## Formula for Percent Error\[ \text{Percent Error} = \left| \frac{\text{experimental value} - \text{known value}}{\text{known value}} \right| \times 100\% \]### Explanation for Screen Readers:To calculate percent error, find the absolute value of the difference between the experimental value and the known value. Divide this difference by the known value and then multiply the result by 100 percent.## Practical ExampleGiven:- The known heat of vaporization (ΔHvap) of water is 44.01 kJ/mole.- An experimentally determined ΔHvap is 49.76 kJ/mole.### Task:Find the percent error using the provided experimental value and the known value. Express the result as a percentage.1. **Calculate the Difference**:\[ \left| \text{49.76 kJ/mole} - \text{44.01 kJ/mole} \right| = \left| 5.75 \right| = 5.75 \text{ kJ/mole} \]2. **Divide by the Known Value**:\[ \frac{5.75 \text{ kJ/mole}}{44.01 \text{ kJ/mole}} \approx 0.1307 \]3. **Convert to Percentage**:\[ 0.1307 \times 100\% \approx 13.07\% \]### Conclusion:The percent error in the experimentally determined heat of vaporization of water is approximately 13.07%. #### Note:When calculating percent error, it is crucial to use the absolute value of the difference to avoid negative percentage errors, which do not have a meaningful interpretation in this context.

Given : Experimentally determined ΔH = 49.76 KJ/mol = experimental value And Known value of ΔH =…

Percent Error = | experimental value - known value | x 100% known value Screen Reader Note: To calculate percent error, find the absolute value of the difference between experimental value and known value. Take this and divide it the known value. After that, multiply by 100 %. End of note. Given the known heat of vaporization (delta H vap) of water is 44.01 kJ/mole, find the percent error using the experimentally determined delta H vap of 49.76 kJ/mole. Express with units of % in the units box.

Percent Error = | experimental value - known value | x 100% known value Screen Reader Note: To calculate percent error, find the absolute value of the difference between experimental value and known value. Take this and divide it the known value. After that, multiply by 100 %. End of note. Given the known heat of vaporization (delta H vap) of water is 44.01 kJ/mole, find the percent error using the experimentally determined delta H vap of 49.76 kJ/mole. Express with units of % in the units box.

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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