A student performs this experiment and determines that 1.2 grams of CO2 was lost, but based on their limiting reagent calculations, 1.3 grams of CO2 was expected to be lost. What is the % error for this student's experiment?
delta g lost = 0.1
%error = (0.1/1.3)*100 = ?
To find the percent error for this student's experiment, we need to compare the difference between the expected value and the measured value relative to the expected value.
Step 1: Determine the absolute difference between the expected and measured values.
Absolute Difference = | Expected Value - Measured Value |
In this case, the expected value is 1.3 grams and the measured value is 1.2 grams.
Absolute Difference = | 1.3 g - 1.2 g |
Step 2: Calculate the percent error.
Percent Error = (Absolute Difference / Expected Value) × 100%
Using the values from Step 1:
Percent Error = (| 1.3 g - 1.2 g | / 1.3 g) × 100%
Simplifying further:
Percent Error = (0.1 g / 1.3 g) × 100%
Using a calculator to perform the division:
Percent Error ≈ 7.69%
So, the percent error for this student's experiment is approximately 7.69%.