Study Guide
(safety-1.3 quiz)
Safety
Before the Lab:
-Make sure goggles are on (kept on until instructed to take them off)
-Make sure your hair is completely tied up and out of the way
-Make sure sleeves are rolled up
-Make sure your apron is on
Safety Equipment
-fire blanket
-eye wash/ shower
Chemicals
-Always waft liquids (to detect odor)
-Never waft solids/ powders
-Avoid touching chemicals
-Always wash hands with soap and water after labs
-If chemicals touch skin (wait 1 min AND notify Mr. Leeds)
Glass
-Never use chipped or broken glass
-tell Mr. Leeds and dispose of broken glass in proper trash
-Never use force to remove or insert glass
Alcohol Burners
-Never walk away from a lit burner
-Never point the open end of a hot test tube at yourself or someone else
-Do not look down into a tube/ beaker while it is being heated
-Make sure burner is capped and flame is out when done
End of Experiment
-Make certain that the burner is out if one was used
- Keep goggles on (over eyes) until Mr. Leeds says to put them away
Lab: Reaction in a bag
Chemicals:
Red liquid:
-Phenol red: used as a ph indicator (below 7 turns yellow above 8 turns pink)
Substance A:
-Calcium chloride: mildly acidic (hydrotropic- absorbs water): uses canned veggies
Substance B:
-Sodium Bicarbonate: not acidic (baking soda)