How does using a pipet improve the precision of liquid density determinations?

Using a pipet improves the precision of liquid density determinations because it allows for smaller measurement increments. This precision is achieved through the design of pipets, which are calibrated to deliver exact volumes of liquid. When conducting density measurements, having the ability to measure and dispense liquid in small, controlled increments helps to minimize variability and error in the amount of liquid transferred. This precision is crucial in density calculations, as density is defined as mass per unit volume; even slight inaccuracies in volume measurement can lead to significant errors in the final density value.

For example, using a pipet to dispense a specific volume, such as 5.00 mL, ensures that this volume is exact, which in turn enhances the accuracy of calculations. The ability to achieve finer control over sample volumes makes pipets a preferred choice in laboratory settings, particularly in applications requiring high precision, such as density determinations.

Options that suggest larger liquid samples or quicker measurements do not directly contribute to improving precision in the same way that the ability to make smaller measurements does. Finally, while handling viscous liquids might be a practical advantage, it does not specifically relate to the precision of density determinations.