Answer:
The answer to your question is 19%
Explanation:
Data
Molar mass = 58
Molar mass calculated = 69
% error = ?
Formula
% error = | calculated - theoretical| / theoretical
Substitution
% error = |69 - 58| / 58 x 100
Simplification
% error = 11/58 x 100
% error = 0.19 x 100
Result
% error = 19
