Friday January 30, 2015
Check the answers to the temperature conversions homework here Warm-Up 1/30/15: 1. Convert 350kg to pounds. (Remember to use correct sig figs in your answer!) 2. Challenge Problem: A planet Continue Reading →
Author Archives: Marissa
Answers to Temperature Practice Problems
1. -5 degrees Celsius 2. -125 degrees Fahrenheit 3. 12.7 degrees Celsius 4. 236 Kelvin
Temperature
There are three temperature units used in chemistry: K= Kelvin C=Celsius F=Fahrenheit Here are the formulas needed to convert between different units of temperature: T ºC = (T ºF – 32 ºF) x Continue Reading →
Thursday January 29, 2015
Check your answers to last night’s homework about Percent Error here Warm-Up Problems: Open the Units of Measurement linked PDF below Units of Measurement
Answers to Percent Error Practice Problems
1. Sid Sloppy was not careful in his measurements. He measured the volume of a 12 oz. bottle to be 14 oz. (14-12)/ 12 x 100= 17% 2. Gilbert Goofoff Continue Reading →
Wednesday January 28, 2015
***Turn in your homework worksheet to the bin*** Warm-Up 1/28/15: 1. How many sig figs are in each number? a. 0.028 b. 6007.00 c. 0.0050 d. 20200 e. 3.40 x Continue Reading →
Identifying Variables and Controls Practice with Answers
Read the experiment below. Identify the independent variable, the dependent variable, the experimental group, and the control group for the experiment. A group of college students were given a short Continue Reading →
Scientific Notation
MSDS
The abbreviation MSDS stands for Material Safety Data Sheet. An MSDS contains useful information for those working with the chemical or for emergency personnel in the event of a spill Continue Reading →
Lab Equipment
Below you will find the names and photos of some pieces of equipment commonly found in the chemistry lab: Here is a link to a practice quiz if you would Continue Reading →