Question

calculate percent error
m (actual) =0.66 g
m (experimental) = 0.66 g

Answer 1

we can apply this formula:
\[\Large E = \frac{{{{\text{m}}_{{\text{experimental}}}} - {{\text{m}}_{{\text{actual}}}}}}{{{{\text{m}}_{{\text{actual}}}}}} \times 100\]

Answer 2

there is no error