What is the total mass of all the grocery store plastic bags used by an average American family in one year? How does this compare with the other hydrocarbon products we use, e.g. gasoline? (Guesstimation)
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What is the total mass of all the grocery store plastic bags used by an average American family in one year? How does this compare with the other hydrocarbon products we use, e.g. gasoline? (Guesstimation)
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- Immunoglobulin antibodies occur in five forms. A sample of serum is analyzed with the following results. Calculate the percentage of total immunoglobulin represented by each type. Type:IgGIgAIgMIgDIgEAmount(mg):987.1213.399.714.40.1This year, like many past years, you begin to feel very sleepy alter eating a large helping of Thanksgiving turkey. Some people attribute this sleepiness to the presence of the amino acid tryptophan in turkey. Tryptophan can be used by the body to produce serotonin, which can calm the brains activity and help to bring on sleep. a. What mass in grams of tryptophan is in a 0.25-lb serving of turkey? (Assume tryptophan accounts for 1.0% of the turkey mass.) b. What mass in grams of tryptophan is in 0.25 quart of milk? (Assume tryptophan accounts for 2.0% of milk by mass and that the density of milk is 1.04 kg/L.)A package of beef jerky says that there are 2 serving sizes (1 serving size =28g) in the package. Additionally, is says that there are 16g of protein per serving. What percentage of the package is made up of protein? Be sure to include the % sign with your answer.
- Part D: Food Calories Naked Juice Serving size 240 mL D1. Name of food product D2. Mass of food nutrients in one serving Fat Carbohydrate 33 g, Protein g, D3. Calculations for Calories (Cal) or kilocalories (kcal) per serving kcal (Cal) Carbohydrate Protein kcal (Cal) Fat kcal (Cal) D4. Total Calories (Cal or kcal) per serving kcal (Cal) D5. Calories (for one serving) listed on the label cal (Cal) D6. Percentage of total Calories from carbohydrate % (show calculations) D7. Percentage of total Calories from protein (show calculations) % D8. Percentage of total Calories from fat (show calculations) % Q 4. How does your calculated number of Calories in one serving compare to the Calories listed on the food product nutrition label? Comment on it.Gas chromatography is an analytical technique that is used to separate and analyze samples that can be vaporized without decomposing. The chromatography column contains a substance that helps separate the sample being analyzed. The sample is vaporized and carried through the column by an inert gas. As the mixture moves through the column, the compounds are separated based on how much they interact with the substance in the column. The molecules of each compound are detected as they exit the column, and a peak for each compound is produced on a chromatogram. The area under each peak on the chromatogram is proportional to the concentration of the compound in the sample. A chromatogram produced by separating a mixture of compounds is shown. Time to Go Through Column Based on the information given, which of the following statements about the chromatogram is most likely true? A The three peaks each represent a different element. B The three peaks each represent a different substance used to…nHMAC%3Def41415d9158412623399163083b2ede#10001 Spr. 2021 8 Gu HI, Leira v Sign Out Item 4 I Review | Constants | Periodic Table Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this will require a total of 2250 kcal of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 g of carbohydrates, 10 g of fat, and 40 g of protein. Part A How many nutrition bars should Alexandra pack? Express the number of bars numerically. > View Available Hint(s) ν ΑΣφ bars Submit Previous Answers 0V 12:33
- Hydrogen peroxide decomposes into oxygen and water. What mass of oxygen is formed from the decomposition of 125 g of hydrogen peroxide (H2O2)? MM of H2O2 = 34. 02g/mol MM of O2 = 32.00 g/mol MM of H2O = 18.02 g/mol Note: Round off your answer to two decimal places and no need for the units.What is the molar mass of alanine, C3H7NO2? • Write your answer using ONE decimal place, even if this is not the correct number of significant figures. • Do NOT include units.A blue crystal is added to an alcohol solution, but does not dissolve in the alcohol. How would you classify this system? Element Compound Heterogeneous mixture O Homogeneous mixture
- Fill in the blanks: A Scotch whisky blend contains 40% alcohol by volume. How many milliliters of alcohol is present in 1.00L of Scotch whisky blend?1. What does simple distillation data from the same mixture would look like? 2. Why does the temperature on the thermometer decrease after collecting the first fraction before increasing to the second fraction?1) State your interpretation of the meaning of the slope for the first graph you prepared of Volume of Steel Nuts (mL) versus Number of Steel Nuts. Hint: Understanding the meaning of a slope involves several factors: the units which are a ratio of the y axis units over the x axis units, the interpretation of the slope as “number of the y axis units for every one of the x axis units” and the concept that constructing the best line or curve that follows the trend in the data is a sort of averaging of the random error throughout the data.
