Tuesday, September 27, 2011

Chemistry In A Bag

Materials Needed: Pippett, Pheynol Red, Baggie, Calcium Cloride, Spoons, Cups, Water, Baking Soda, Goggles.

Calcium Cloride. Sodium Bicaribate. Baking Soda. And Phenol Red. :
Temperature: First was really hot, then immediately got cold.
Feeling: I could feel the calcium cloride then it all turned to liquid.
Smell: Smells Like Candy. Smells Sweet
Color: I saw some pink/purple. Then It turned to all yellow.
When I closed it, I made sure I had all the air out of it. Then it started filling up with the gas. It popped at the top so all the air/gas came out.

Baking Soda, Water:
Temperature: Cold
Feeling: Liquidy
Smell: No sent
Color: Milky White.



Baking Soda. Pheynol Red:
Temperature: Not too cold. Not too hot.
Feeling: Liquid
Smell: A Chemical
Color: Purple/Pink

Baking Soda, Pheynol Red & Calcium Cloride:
Temp: Cold
Feeling: liquid

Smell:
Paint

Color: first was pink/purple. then yellow

Water, Baking Soda, & Calcium Cloride:
Temp: Cold
Feeling: Liquid after the calcium cloride turned into liquid
Smell: Paint
Color: Milky White
The Calcium Cloride & the water released Co2 so the bag inflated

Pheynol Red & Calcium Cloride:
Temp: Hot
Feeling: I can feel the beads of the calcium cloride
Smell: Paint
Color: Yellow & Red
It got super hot right when the liquid touched the calcium cloride



Lab Questions:

1.) I think that the calcium cloride made the temperature change in every reaction that it was involved it.

2.) Calcium Cloride & Pheynol Red produced the heat.

3.) In the overall reaction it was all pink & purple then it started turning yellowish orange when I kept shaking it. The Pheynol red & the calcium cloride changed the color.


4.) No, because the baking soda & the water caused the Co2 and it didnt have a temperature change.

5.) All were tested.

6.) The changing of the temperature, color, feeling, and smell make a new chemical substance.

7.) See what changes after you combine calcium cloride & water.

8.) Yes, temperature changes are caused by the breaking chemical bonds & forming new ones then that makes a new chemical creation.

Chemistry in a Bag

Chemistry in a Bag




In the lab my partner and I used Calcium Chloride, Sodium Bicarbonate, Phenol Red, Water, baggies, goggles, and Scopes.


Safety hazards: that we were warned about are the Phenol Red stains clothing, Calcium Chloride irritates the skin. wear goggles and pull back hair.


We put each individual substance into the baggie then we shook it up. While shaking it we recorded the observations we were making. When doing this lab make sure you wear goggles, have your hair pulled back, don't mess around because the Phenol Red can get spilt and it does stain clothing and skin. Make sure your work station is cleared so nothing can get bumped or spilled.



The Observations of the Chemistry in a Bag:



Substance
Calcium Chloride (CaCl2)
Sodium Bicarbonate (NaHCO3)
Phenol Red
Water



Observation:
Ca Cl2: circular powder balls, white, no scent
NaHCO3: white powder, no scent
phenol red: red liquid, no scent
water: clear liquid, no scent




Test
1. Mixed all
2. CaCl2 & water
3. NaHCO3 & water
4. CaCl2 & Phenol Red
5. NaHCO3 & Phenol Red
6. CaCl2, NaHCO2 & water
7. CaCl2, NaHCo2 & Phenol Red




*match numbers*



Observation of Test:


1. cool, yellow and gas pressure
2. heat, No scent and insoluble
3. Cool, no scent
4. pink, smells like rubbing alcohol, beads don’t dissolve
5. cold, pink
6. gas producing, bubbling, like toothpaste
7. gas producing, yellow, heat then cooled down





Questions:
1. Calcium Chloride produces the heat with either liquid. Sodium Bicarbonate makes it a little cooler.
2. No not really, it was a little cooler. But not extremely cold and it wasn't hot.
3. There was two colors. One color was yellow, and one was pink. The Phenol Red was responsible for color change.
4. Yes, because you are holding it therefore you can feel the heat then when you feel the heat the bubbles and being produced to make gas. When the heat was being produce it already changes colors, it kind of all happens at the same time.
5. Yes, liquid is necessary or else nothing really happens because then it's just a dry substance trying to mix with another dry substance and nothing happened. The water had some part in it when my partner and I tested the water helped mix the substances which then produced gas, bubbling, and heat.
6. It produced some sort of chemical reaction. Calcium Chloride and Phenol Red.
7. Mix Calcium Chloride with other liquids.
8. No not always, because if you heat water then its just heating the water the water didn't change other then getting hot.