Last week, we discussed the pH scale and all that. We learned about acids and bases and how to neutralize substances. Now, we have to apply our knowledge to begin a project. Let’s learn!
Our new project is about neutralizing. We have to choose some sort of acid or base, like lemon juice or egg or whatever. Then we have to create a news article explaining a chemical spill (with our chemical) and we have to explain how the spill came to be. My group chose to do lemon juice. We have a lot more to do than just the article. Let’s investigate further.
Now, the substance is lemon juice. We had to create not only the article on how our spill came to be, but an infographic on these questions:
- Product Information: product identifier (name), manufacturer and suppliers names, chemical formula, structural formula
- Hazardous Ingredients - i.e. if you choose Windex, what is the ingredient in Windex that you are trying to neutralize?
- Physical Data of the hazardous ingredient (includes physical properties)
- Fire or Explosion Hazard Data
- Reactivity Data of the hazardous ingredient: information on the chemical instability of a product and the substances it may react with (includes chemical properties)
- Toxicological Properties: health effects
- Preventive Measures
- First Aid Measures
- Uses
If was a lot of research, but I learned a ton from the part one and now I know a lot of stuff about it. Okay, number one, the product information. Lemon juice. That is the “hazardous chemical” that was spilled. Actually, lemon juice is quite acidic. It contains citric acid, which is the harmful ingredient we have to neutralize. Citric acid is about a 2 on the pH scale. If you read my previous blog, you would know what that means. Or if you’re just smart in general and happen to know it. Either way, as long as that makes sense.
Citric acid is odorless and colorless with an acidic taste. It is a white crystalline solid. Its melting point is 153°C, and its boiling point is 175° C.
Even though citric acid can be painful (Inhale: can irritate lungs, respiratory tract, coughing, and a sore throat. Ingestion: vomiting, nausea, can irritate stomach, and diarrhea. Skin Contact: can cause redness, irritation. Eye contact: redness, pain. Erosion of teeth and dental enamel as well), i can be quite useful sometimes. It is found in citrus fruits (i.e. grapefruit, lemon, orange lime…), preservatives, sour candies, beauty products, and carbonated drinks.
Lemonade is still okay to drink, so don’t be saying t will damage you. Even plain lemons are okay, so lemon juice diluted in sugar and water won’t harm you.
If you would like to check out the whole article, go here. Don’t forget to check out the related article! We had a little extra time.
S&EP: SP8: Communicating information
This week, we spent our time gathering information from multiple sources. We had to collect as much as possible on our topic, and then we had to write an article (or two) on our findings. We had to communicate the information that we already knew through our article. I had a lot of fun starting our project; I can’t wait to move on to part two!
XCC: Cause and Effect
In our article, something had to happen. We had to make up a story of how our chemical spilled. Now that the chemical spills, we have to test out our ideas to see if the effect on the town will save it or destroy it. It could be either way, for the cause could be the spilled chemical and the effect could be great, or vice versa. This is a good example of case and effects.
No comments:
Post a Comment