Answer:
The molecular weight of CO is 28.01g/mole.
Percent error can be calculated by the difference of the theoretical value and the measured value divided by the theoretical value multiplied by 100 percent.
% error = 27.26 - 27.2 / 27.26 x100
% error = 0.22%
A value close to zero would mean that the measured value is more or less near the actual value.
the average speed is 23.4 km per hour cause it is total distance over total time equal to average speed