Question

to find the percent error for the 2nd trial, what number would you use 2.8/500.0 x 100 2.8/502.8 x100 rewatch submit

Explanation:

Step1: Recall the formula for percent error

Percent error formula is $\frac{\vert\text{Experimental Value}-\text{True Value}\vert}{\text{True Value}}\times100$. Here, assume $2.8$ is the error (difference between experimental and true value) and $500.0$ is the True Value.

Step2: Check the formula application

The formula $\frac{2.8}{500.0}\times100$ follows the percent error formula structure. The other option $\frac{2.8}{502.8}\times100$ does not match the standard percent error formula as the denominator should be the True Value, not $502.8$ (which might be a sum of error and True Value in an incorrect approach).

Answer:

$2.8/500.0\times100$