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Concentration of Iced Tea and Coffee

Gustav Pietsch and Chantelle Guss. Chemistry 20-1. Mrs. Humby.

John Raymond

on 1 May 2013

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Transcript of Concentration of Iced Tea and Coffee

Iced Tea When mixing the ice tea powder with water the powder acts as the solute, and the water is the solvent. + = The Chemistry When you stir up your iced tea, what's really happening? http://www.wolframalpha.com/input/?i=glucose+dissovled+in+water Glucose Glucose has many groups of O-H ions. These groups are very attracted to water molecules, because of Dipole-Dipole forces. As we learned before water molecules are polar, these polar molecules attach to the glucose molecules. And BAM!! a hydrogen bond is formed, making the glucose more water soluble. Bibliography http://www.cancerresearchuk.org/home http://www.ask.com/question/why-does-glucose-dissolve-in-water Water http://www.wedincommunications.com/caffeine4.htm Some More Chemistry Generally you would measure the concentration of your iced tea in percentage. http://wiki.answers.com/Q/What_is_the_chemical_formula_for_coffee So let's say you are making one glass of iced tea, that roughly 250ml. So you will, according to Nestle, add 150g to 250ml of water. c= x 100% g
ml So... http://www.elsevierdirect.com/brochures/conap2/PDFs/Vol3_Chemistry_of_Coffee_lr.pdf http://www.elsevierdirect.com/brochures/conap2/PDFs/Vol3_Chemistry_of_Coffee_lr.pdf c= x 100% 150g
250ml c= 60% Concentration of Iced Tea and Coffee By Chantelle and Gustav Commercial vs. Domestic Powder iced tea is not used commercially because it is inefficient to sit and stir a glass of iced tea in a restaurant, where time is everything. So therefor iced tea in powder form is usually only used domestically, but that's what it was designed for. Past and Present Iced tea began being served around the mid 1800's, and was very popular in the South.
There was no real "inventor" of iced tea, people just started drinking tea cold because it was much more refreshing than hot tea was.
This today is what you will receive in an American restaurant if you order "iced tea".
Iced Tea served in Canada is usually Nestea Iced Tea or Lipton Brisk Iced Tea. http://www.energyfiend.com/the-caffeine-databasehttp://www.energyfiend.com/the-caffeine-database 194.22 grams/mol Coffee 8 + = When mixing the coffee grounds with the water the grounds act as the solute
and the water is the solvent. The Chemistry of Coffee The average amount of caffeine in a brewed cup of coffee is 107.5 mg per 236mL. C = g/L x 100% C = 0.1075g/0.236Lx 100% C = 45.6% C H N O 2 4 10 Caffeine The concentration of caffeine
in coffee is 45.6% Commercial and Domestic Both commercial and domestic have the same average amount of caffeine percentage. Coffee is used both commercially and domestically in practically the same way. It is usually brewed but the methods for both are different. The latest method to brew domestically is through Tassimo or Keurig, making one cup or mug at a time. http://productnutrition.thecoca-colacompany.com/products/nestea-iced-tea-lemon#nutrition Although commercially they use the same method but at a larger scale making a greater amount of coffee. Caffeine can kill you! Health Concerns It is true that the consumption of too much caffeine can kill you.
Therefore to much coffee can kill you. However it would take just over 83 cups of coffee before Gus would start pushing up daisies. Iced Tea isn't actually as bad as you might think it is for you. It has no added preservatives and the worst thing in it is probably caffeine and sugar.
Many people believe that drinking cold green tea is very beatifically to your health because it is very low in calories and is a great way to hydrate yourself.
You would have to force 196 cups of it down Chantelle's throat before she would kick the bucket. Ice tea also contains caffeine,
but at a much lower concentration. 369 cups of green tea will kill me and 196 cups iced tea will kill me. Let's start with iced tea Fun fact 6 grams of caffeine will kill a 100 lbs person! http://www.energyfiend.com/death-by-caffeine
Lipton Tea is a certified member of Rainforest Alliance, so they are very environmentally friendly company. This company is similar to Fairtrade because they help out small independent farmers. Vs. It's coffee time!
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