Question

question 1 (1 point)
which of the following is not an example of systematic error?
spilling some of the reaction after initial masses are recorded
loss of some solid when transferring from the weigh boat to the reaction
glassware.
loss of some sample in a vacuum filtration setup despite all efforts to get the
product onto the filter paper
recording measurements for multiple reaction trials with the exact same time
length for each reaction trial.

Explanation:

Systematic error is a consistent, repeatable error caused by faulty equipment or flawed experimental design. Spilling, losing sample during transfer, or having loss in vacuum filtration setup are systematic errors as they are due to experimental process issues. Recording measurements for multiple trials with same time length is a normal experimental procedure (assuming time is a controlled variable) and not a systematic error.

Answer:

Recording measurements for multiple reaction trials with the exact same time length for each reaction trial.