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- Some scientists think there are living things smaller than bacteria (New York Times, January 18, 2000, p. D1). Called nanobes, they are roughly cylindrical and range from 20 to 150 nm long and about 10 nm in diameter. One approach to determining whether nanobes are living is to estimate how many atoms and molecules could make up a nanobe. If the number is too small, then there would not be enough DNA, protein, and other biological molecules to carry out life processes. To test this method, estimate an upper limit for the number of atoms that could be in a nanobe. (Use a small atom, such as hydrogen.) Also estimate how many protein molecules could fit inside a nanobe. Do your estimates rule out the possibility that a nanobe could be living? Explain why or why not.You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.Greenwashing is a major problem. Companies will say they are using practices that benefit the environment while really not taking any steps to do so. An example is Terracycle - a company that is supposedly able to recycle non-recyclable plastics and by-products - but which went over a year without collecting products from any of their customers. How can consumers navigate the labels to determine if products are actually sustainable.
- I only need help on the third problem. The second problem that is already answered is needed to solve the third problem. This is the formula I need to follow for the third question. D? = ??? + ( ??? − ??? ) divided by 3 Where TBM is the total body mass and LBM is the lean body mass. Do not let all these letters confuse you. Just remember DM is the dosing mass so this will end up being a number to put in another formula below. LBM is a number you would find out from a patient you might be about to give Heparin. And TBM is the same. We use these letters to remind us what those quantities represent. 2. If the patient is less than 70 years old, the loading dose is 80 Howell Units2 per kilogram of DM. One Howell Unit is equivalent to 0.0020 mg of pure heparin. Calculate how many mg of pure heparin is in 80 Howell Units. Do not worry about the kilograms of DM yet. Answer: 0.16mg heparin/1kg You need this to answer the third question. Which I do not get. I was told to convert 40…A education.wiley.com + Chapter 3 9 of 20 く - / 1 Calculate the theoretical percentage compositions for NO %N = i % %O = i NO2 %N = i %O = iThe mass of Earth's atmosphere is 5.3 x 10 metric tons. The atmospheric abundance of helium is 0.7 ppm when expressed as a fraction by mass instead of by volume, as in Table 4-1. How many metric tons of helium are there in the atmosphere? How many moles of helium is this?
- Solve five of the following applications. 1. Dominic and Eva are given 10 Russian dwarf hamsters as a present. Given that the hamsters reproduce at such a rate that their population doubles every 3 years, answer the following: (a) How many hamsters will they have in 6 years? (b) Write an equation to represent the number of hamsters after t years. (c) How long will it be until they have 100 hamsters and they must sell them back to the pet store because there is no more room in the house? Round your answer to the nearest year. 2. At what rate of interest, compounded continuously will an investment double in six years? 3. Plutonium-241 has a half-life of 13 years. A laboratory purchased 20 grams of the substance but had to wait five days before it could be used. How much of the substance was left after five days? 4. Tritium is used in nuclear weapons to increase their power. It decays at the rate of 5.5% per year. Calculate the half-life of tritium. 5. Use the following model for the next…%ot 令4N ۱۷ من ۲ ۲ YAA @ Asiacel I. A docs.google.com قسم بلا عنوان You are presented with a prescription for Zyloric tablets 100 mg at a dose of 300 mg each day for 7 days, reducing to 200 mg for further 7 days. Then, 100 mg for another 7 A ays. How many packs of 28 tablets should ?you supply Two and a half Three One | Four One and a half The number of days a 150 mL bottle of nitrazepam 2.5 mg/5 mL suspension will last a patient prescribed nitrazepam 5 mg at * .bedtime for insomnia 10 وسن سالم طاهر B2 21:46 äcluI 21.03.112 What is reservior in environmental chemistry? What are O1D (O singlet D) and O3P( O priplet P)? Not sure if it's written in this way.
- (3) Cro3, H30*Q5. As part of the aspirin synthesis lab, the orgo students also had to perform the following calculation to demonstrate their knowledge. Are you able to help them work this out?Saponification is a process in which soap is produced from the chemical reaction between animal fat (triglycerides) and a strong base such as NaOH. An example of such a balanced chemical reaction is shown here:C57H110O6 + 3NaOH à C3H5(OH)3 + 3C18H35O2NaIf, during the saponification reaction, 228.5 g of C57H110O6 is mixed with 211.7 g of NaOH and 180 g of soap is produced: a. Calculate the theoretical yield of soap (in grams), C18H35O2Na, and indicate which species is the limiting reactant. Provide your answer to 2 decimal places. b. Calculate the percent yield for this reaction. Provide your answer to 1 decimal place. Show ALL steps and equations involved in your calculations. Remember to label all steps clearly and use appropriate units1a. Throughout the experiment, what are some possible sources of error that could have led to someone recovering a significantly smaller amount of table salt (NaCI) than was originally present in the sample mixture. 16. What are some possible sources of error that could have led to someone to appear to have recovered a significantly larger amount of sand (SiO2) than was originally present in the sample mixture.