Honors Chemistry

Chapter 2 Study Guide

Can you:

· State the basics steps scientists use to investigate a phenomenon?

· Give two reasons we use the SI system?

· Give the base units for length, mass and volume in the SI system?

· Give approximate equivalences in the English system for common SI quantities?

· Name the prefixes we attach to base units, and state how the base unit changes?

· Convert from one SI unit to another by moving the decimal point?

· Define density and explain the relationship between mass, volume and density?

· Do calculations involving density?

· Give the definitions for heat and temperature, and relate these to the movement of molecules?

· Explain how we determine where zero is on the Celsius and Kelvin temperature scales?

· Explain what it means for a temperature scale to be an “absolute” scale?

· Convert between Celsius and Kelvin temperatures?

· Define “heat capacity”?

· Do calculations using heat capacity?

· Explain the basic concepts/principles of the heat capacity lab that we performed in class?

· Do calculations similar to the heat capacity lab, given similar data?

· State, (and give examples of) the difference between accuracy and precision?

· Define random and systematic error, and explain how scientists deal with each type?

· Convert numbers between decimal form and scientific, or exponential, notation?

· Do calculations on your calculator using scientific notation?

· State the number of significant digits in numeric values?

· Round off calculated values to the correct number of decimal places or significant digits?

· Demonstrate that you can solve problems using the unit analysis method?

· Identify mathematical relationships between variables in formulas and equations?