As Chief Chemist at Superior Analytical Products (SAP) You Must

question 58

Multiple Choice

As chief chemist at Superior Analytical Products (SAP) you must design an experiment to determine the density of an unknown liquid to three (3) significant figures. The density is of the order of 1 g/cm³. You have approximately 7 mL of the liquid and only graduated cylinders and balances are available for your use. Which of the following combinations of equipment will allow you to meet but not exceed your goal?

• A)Graduated cylinder with ±0.1 mL uncertainty; balance with ±0.1 g uncertainty
• B)Graduated cylinder with ±0.01 mL uncertainty; balance with ±0.1 g uncertainty
• C)Graduated cylinder with ±0.01 mL uncertainty; balance with ±0.01 g uncertainty
• D)Graduated cylinder with ±0.001 mL uncertainty; balance with ±0.001 g uncertainty
• E)Graduated cylinder with ±0.1 mL uncertainty; balance with ±0.001 g uncertainty

---

Definitions:

Stroboscopic Movement

An optical illusion where continuous motion is perceived from a series of rapidly presented, static images.

Retinal Disparity

The slight difference in the visual images that each eye perceives because of the varying angles from which each eye views the world, contributing to depth perception.

Blindsight

A condition in which a person can respond to visual stimuli without consciously perceiving them, often occurring after damage to the primary visual cortex.

Linear Perspective

A technique used in art and photography that creates the illusion of depth and distance by converging parallel lines towards a single point on the horizon.