The molar mass of butane (C4H10) is 58 g/mol. If a student measured the molar mass of butane to be 69, what is the % error of the measurement?

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