Chemistry Post Lab 1

Burette

The most accurate glassware due to the highest number of graduations.

Graduated Cylinder

Glassware with moderate accuracy, ranked between burette and beaker/flask.

Beaker/Flask

Glassware with the least accuracy, similar to each other.

Accuracy

Directly related to the number of lines or graduations on glassware; more lines = higher accuracy.

Electronic Balance

A measuring device where more decimal places indicate greater accuracy.

Mass to Volume Relationship

For water, 1 gram equals 1 mL, providing a reliable comparison for experimental values.

Density

The property of water that allows for an actual mass value (50 grams) to be used for comparison.

Percent Error

A measure of accuracy; the burette and balance #2 had the lowest percent error in the experiment.

Beaker Mass Variation

Beakers of the same size can have different masses due to construction differences (e.g., beaker #1:56.2 grams, beaker #2:56.8 grams).

Sources of Error

Potential inaccuracies in measurements can arise from reading above the meniscus, not taking readings at eye level, not zeroing the scale, and over-dispensing liquid from the burette.