Assume that you found that the average volume of water required to fill the graduated cylinder to the 8.00 ml mark was 7.90 ml. What is the percent error?
To calculate the percent error, you'll need to use the following formula:
Percent Error = (|Measured Value - Accepted Value| / Accepted Value) x 100
In this case, the measured value is 7.90 ml and the accepted value is 8.00 ml. Let's substitute these values into the formula to find the percent error:
Percent Error = (|7.90 ml - 8.00 ml| / 8.00 ml) x 100
= (0.10 ml / 8.00 ml) x 100
= 0.0125 x 100
= 1.25%
Therefore, the percent error is 1.25%.
To calculate the percent error, you need to compare the measured value to the accepted value and calculate the difference as a percentage.
In this case, the accepted value is the volume required to fill the graduated cylinder to the 8.00 ml mark, which is 8.00 ml. The measured value is 7.90 ml.
To get the difference, subtract the accepted value from the measured value: 7.90 ml - 8.00 ml = -0.10 ml.
Now, calculate the absolute value of the difference: |-0.10 ml| = 0.10 ml.
To calculate the percent error, divide the absolute difference by the accepted value and multiply by 100: (0.10 ml / 8.00 ml) × 100 = 1.25%.
Therefore, the percent error is 1.25%.