5,7% of error in a Hydrated Crystal lab, is it too high?
I say your percent error could pass as acceptable.
The thing with percent error is that you don't have a standard interval of accepted values that you can use as a reference for every experiment you do.
Percent error depends on the application itself. More specifically, percent error depends on what measurement limitations your experiment has.
For high school level chemistry labs, a percent error that revolves around
Of course, this depends on the requirements set by your instructor.
If your equipment allows for very accurate measurements, your target percent error could go as low as
Your values correspond to a
Again, that ultimately depends on what your instructor considers acceptable.