Each experiment has to be run at least in triplicate. It is recommended that the student start with four samples so that one can be ruined and three will remain and be usable. Record every step of your work in the laboratory notebook and carefully tabulate all experimental results as obtained. Attach computer printouts. Neat laboratory notebook indicates understanding.
Loose paper has no place in the analytical chemistry laboratory.
Each laboratory period plan to calculate that day's results either before leaving for the day, or before the next laboratory period. Many students report that after the calculations are done another set of samples is needed. All samples for analytical determination should be weighed on the analytical balance. Most reagents are prepared using a top loading balance. The rule of thumb is to use the analytical balance unless you will standardize the solution.