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.