Clinical

MRI machines primarily work using ____.a. The nuclei of carbons in fatty acid chainsb. The nuclei of oxygen atoms from water molecules in the bodyc. The nuclei of hydrogen atoms from water molecules in the bodyd. The nuclei of radioactive isotopes injected into the body

Is this correct for the diaper dissection lab

PART ONE: Preparation of FECNS* Solution Prepare the two solutions in table 1 by accurately measuring the required volumes of distilled water and CNS into two labeled test tubes. The absorbance of the solutions must be measured soon after adding the Fe" solution from a buret. TABLE 1 Fe 5 ml 5S mL Solution Distilled Water CNS 2 mL Total Volume 3 ml 2 ml 10 ml 3 mL 10 ml In this part of the experiment you are to explore what the above quote means. As a PRELIMINARY Exercise, formulate a hypothesis as to what would happen under each of the following circumstances: 1. 1ml of 0.0020 M CNS' solution is added to the unused portion of solution 1 in the test tube 2. One drop of 0.20 M CNS solution is added to the unused portion of solution 2 in the test tube.

Explain the importance of analytical chemistry in medicine. As well as: 1. Chemical chemistry 2. Medicinal chemistry 3. Pharmacology 4. Toxicology

When purifying a sample of aspirin that was produced in the lab, the impure aspirin sample should be dissolved in a very cold solvent, so that solid impurities can be filtered and analyzed the next day or the next week. True or False?

a common preservative used in hematology and blood bank

Dangerous Paint Stripper Jessica has a summer job working for the city parks program. She has been using a cleaner called “Graffiti Gone” to remove graffiti from the bathrooms. She has to take a lot of breaks, because the chemical makes her throat burn. It also makes her feel dizzy sometimes, especially when the bathrooms don’t have very many windows. On the label, she sees that the cleaner has methylene chloride in it. She feels like she’s managing to get the work done, but she is worried about feeling dizzy. She wants to find out more about this chemical, what harm it can cause, and whether there are safer ways to do this work. Questions for following story. 1. What went right in this situation? 2. What went wrong in this situation? 3. What steps should be taken in this workplace to make sure employees are better protected and prepared the next time?

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Consider the following molecules. Which statement(s) is TRUE? CH3 CH3 но ČH3 но ČD3 i. You could differentiate between the two with a spot test. ii. You could differentiate between the two with liquid chromatography. iii. You could differentiate between the two with TLC. iv. You could differentiate between the two with a microcrystalline test. O a. i and iv only O b. ii and iii only O c. iii only O d. i only e. Neither i, ii, iii, nor iv are correct statements.

How to determine the difference between primary , secondary and tertiary alcohol in the laboratory

Subparts 4-6

blue ink from three different pens appears to be the exact same color. explain how to determine whether the dyes are identical

solve for the line equation and R2 given the table below

Answer only the one question below. This is about a labwork in chemistry, i need your help.   These are the solute to be dissoolve in water and vegetable oil: Acetic acid (vinegar) Sucrose (sugar) Monosodium glutamate (vetsin) Cellulose (cotton fiber) Isopropyl or ethyl alcohol Fatty acid salts (soap) Kerosene Naphthalene balls  (NOTE: So this 10 will be mixed with water and vegetable oil)   Question: 1. What do you think is the main difference of the outcome of the solution of those who are mixed with water and those who are mixed the mixed with vegetable oil? Please show the difference and similaries(if theres any).

What is Donnan's theory? What is its importance in biophysical chemistry?

Unknown Mixture #1 Unknown Mixture #2 Sample caffeine ibuprofen aspirin acetaminoph en Distance to solvent front 14,70 cm 14,70cm 14.70cm1u.70 cm 1나,구 cm |14.구0cm 5. 70 cm 11.90 cm I.85cm Distance Spot(s) traveled 175 cm 13.75cm 11.9 5 cm 6.4 0 cm 13,75 cm 13.75 cm 38 78 1908 .8095 Calculated R:(s) 119 ,9354 812 9 43 S .9354 9354 #1:Aspirin an d lbuprofen Components of Unknowns #2: Ace taminophen, aspirin an d ibu profen D. Additional Exercises 1. Which of the substances tested is most polar? What parts of the structure of this substance is polar? The Sul 2. Which of the substance tested is most non-polar? What parts of the structure of this substance in non-polar?

A piece of news reported that Jenjarom, a town located in the Kuala Langat District, is now smothered in 17,000 tonnes (17mil kg) of plastic waste. There were 33 illegal factories in Kuala Langat, the district Jenjarom is located in. Some sprang up nearby dense palm oil plantations, whereas others were closer to town. The smell started a while ago but got worse around August this year. People in the town started to feel unwell and would keep coughing. These illegal recycling plants choose to dispose of plastic a cheaper way - either burying it or burning it causing fumes - so hazardous that some people even coughed up blood clots while some could not sleep at night because of the smelly air. Children were also affected, especially those who lived nearest to the factories in Jenjarom. There were reports some children developed really bad rashes around their stomach, neck, legs, and arms. Their skin would keep peeling, even when touched by people, and hurtful. The smell was far and wide…

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.

Bromophenol blue= max 600 concentration (M) of the original solution =10.0 mg/L absorbance solution 1 = 0.20 solution 2 = 0.43 %3D %3D solution 3 = 0.66 solution 4 = 0.93 %3D solution 5 = 1.10 I need the concentration (M) in all the solution

* The data in the table below were obtained during a photometric determination of glucose in blood serum. A serum sample gave a transmittance of 0.45. Find the glucose concentration in the blood serum. * Glucose 0.0 2.0 4.0 6.0 8.0 10.0 concentration, mM Absorbance 0.002 0.15 0.294 0.434 0.5704 0.704

To run a spectrophotometry experiment, begin by warming up the spectrophotometer and preparing the samples. Be sure to select the correct absorbance (X), then run a measurement on the sample solution. Follow up by running measurements on sample solutions. Once data is collected, turn off the instrument, clean the area, and discard the samples. Partially correct (2 of 4 correct)

A serial dilution was performed using 5 successive test tubes. What is the dilution in the 3rd tube? 1ml Original inoculum Dilutions 1:2 1:10 1:100 1 ml 1 ml 9 ml of diluent in each tube 1 ml 1 ml

Explain how the knowledge of histology is relevant to CHEMICAL CHEMISTRY

PAPER CROMATOGRAPHY • Define chromatography • Demonstrate an understanding of the process of chromatography • Describe the steps involved in a chromatography investigation Explanation Coloured inks are often made up of several different inks. Each colour of ink will get carried a different distance by the water, allowing you to see all of the different inks. Try this with different colours to see what actually goes into a colour. This technique is called chromatography and can be used in chemistry to find out what is in an unknown mixture. II. Materials .Felt tip pens (non-washable) . Kitchen roll .A bowl or cup . Water • Scissors III. Health and safety • Make sure that you thoroughly clean any equipment after the experiment before using for food IV. Procedure Method 1 1. Take a sheet of kitchen roll and draw a simple picture with a non-washable felt tip pen. 2. Place the sheet over an empty bowl. This is to keep the paper from getting too wet. 3. Carefully add a few drops of water…

MCPBA CH2N2, hv Br2, CC14

is used for the qualitative analysis of elements nitrogen, sulphur and halogen in Organic compounds. In order to detect them, it is 55. necessary to convert them into ionizable inorganic substances. O Sodium Fusion Test Aliphatic Test O Ignition Test

24. The dose of AUGMENTIN oral suspension for a patient is 5 mL b.i.d. Each 5 mL of suspension contains 400 mg of amoxicillin and 57 mg of clavulanic acid. If the suspension is to be taken for 10 days and is available in 50-mL, 75-mL, and 100-mL containers, calculate (a) the least wasteful package size to dispense and (b) total quantity of amoxicillin taken during the treatment period. Doses: Injections

Different type of methods used in household contaminated wastewater purification

Is 10 ppm 400% less than 50 ppm?

What is the purpose of Safety Data Sheets? Why are these important when handling common food service chemicals? What information/components are generally included? How do Safety Data Sheets vary?

1) Which of the diet sodas have the highest concentration of caffeine? Which standard best reflects this concentration?