Question

Measure an amount of popcorn kernels between 250 and 400 ml in your beaker. Record the volume of kernels in both volume (ml) columns on your flow rate chart. To gather accurate data, you will use the same volume for each trial?

Answer 1

The question is about measuring a specific volume range of popcorn kernels for an experiment, which involves concepts of accuracy and precision in scientific measurements, similar to practices in a pharmaceutical chemistry lab.

Step-by-step explanation:

The student's question pertains to measuring a specific volume of popcorn kernels that falls between 250 and 400 milliliters (ml) for an experiment and then recording this volume consistently across subsequent trials.

This task relates closely to chemistry laboratory practices, where accurate and precise measurements are crucial. For example, a quality control chemist in a pharmaceutical setting may assess the accuracy and precision of machines dispensing cough syrup by comparing the actual dispensed volume against a standard volume, such as 10 ounces (296 ml), with results showing whether the machines are working within acceptable limits.

Accuracy refers to how close the measured volumes are to the target value, while precision indicates how consistent these measurements are across different trials. Using a graduated cylinder can help in obtaining accurate and precise measurements, as it is designed for measuring liquid volumes in milliliters and centiliters, ensuring consistency in results.