9/27/11 Chemistry in a Bag

• Chemical Hazard

• the Phenol Red will stain

• waft substances DO NOT SMELL
  

Observation

• 
  
  
  observe every substance and tell the color, odor, what it looks like and so on

Procedure

• take one pipet of water
• one pipet of Phenol Red
• one scoup of Calcium Cholride
• one scoup of Sodium Bicarbonate also known as Baking Soda
• then put the solids in one corner and twist it off and then add the liquids and slowly un-twist the corner
• one person needs to shake the bag and also tells what is happening (observations) and the other person needs to write down the observations

After the combination

• it turned red, then orange, it was hot, then yellow with red spots, the bag was getting air in it, the bag was yellow, the liquid was orange, and it smelled like alcohol swabs

Questions/Answers

#1:

#2:

#3:The color went from red, to orange,to yellow with red places, to yellow on the bag, and the liquid was orange. Yes, because without the Phenol Red the mixture didn't turn yellow, if it had either Calcium Cholride or Sodium Bicarbonate, it would turn white and it would be a liquid with some pebbles

#4:

#5: We combineded Calcium Cholride, Sodium Bicarbonate, and water, then Calcium Cholride, Sodium Bicarbonate and Phenol Red. Yes...

#6:

#7:

#8:

#8: The temperature change could have occured, because of the shaking, while we were trying to combine the substances.