Chemistry and Measurement - Chem 161 Dr. Miller

These flashcards cover key concepts from Chapter 2 of the Chemistry course, including measurement systems, unit conversions, and foundational chemistry principles.

Metric System

A system of measurement developed by the French Academy of Sciences in 1791.

SI System

International System of units adopted in 1960, based on the metric system.

Dimensional Analysis

A method used to convert units of measurement to different units.

Conversion Factor

An equality that can be expressed as a fraction used for unit conversions.

Significant Figures

The number of digits in a measurement that are known for certain plus the first uncertain digit.

Accuracy

Refers to the closeness of a single measurement to its true value.

Density

A characteristic property of a substance defined as mass divided by volume.

Molarity (M)

A concentration unit defined as moles of solute per liters of solution.

Kinetic Energy

The energy associated with an object due to its motion.

Potential Energy

The energy possessed by an object due to its position in a field of force.

Calorie (cal)

A unit of energy commonly used in chemistry, defined as 4.184 joules.

Concentration

A measure of the amount of solute in a given amount of solution.