the acidity constant of acetic acid is 1.8 x 10^-5. Calculate the % error of the measured Ka value of 1.82 x 10^-5
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
To calculate the percent error, we can use the formula:
Percent Error = |(Measured Value - Accepted Value) / Accepted Value| × 100
In this case, the measured value is 1.82 x 10^-5 for the acidity constant (Ka) of acetic acid, and the accepted value is given as 1.8 x 10^-5.
Now, let's plug in the values into the formula:
Percent Error = |(1.82 x 10^-5 - 1.8 x 10^-5) / (1.8 x 10^-5)| × 100
Simplifying the equation,
Percent Error = |2 x 10^-7 / (1.8 x 10^-5)| × 100
Dividing the numerator and denominator by 10^-5,
Percent Error = |2 / 18| × 100
Percent Error = 0.11 × 100
Percent Error = 11%
Therefore, the percent error in the measured Ka value of 1.82 x 10^-5 is 11%.