blood-typing-worksheet (2)

How do you know if your analyzed vinegar sample conform with the FDA standards?

Is this correct for the diaper dissection lab

The hydrochloric acid utilized in this experiment can often discolor gloves if it is spilled on them during use. If this does occur, what should be done in order to remedy this potentially hazardous situation? (ONLY PICK ONE ANSWER) Group of answer choices: Gloves are not needed in this experiment, this question is invalid Put some sodium bicarbonate on the gloves so they can be neutralized Remove the gloves and wash your hands prior to putting a new pair on Wash the gloves off and continue to use them

1. A manufacturing company is interested in knowing how much protein is present in their new protein bar. As part of their science and research team, what kind of analysis should you do? a. Qualitative analysis b. Quantitative analysis c. Characterization analysis d. Fundamental analysis 2. Presence of aluminum sulfate (alum) is a common thing to purify water; however, it can clog up pipelines. To determine how many aluminum sulfates are present in the water, what kind of analysis is needed? a) Qualitative analysis b) Quantitative analysis c) Characterization analysis d) Fundamental analysis 3. Predict the shift in the following equilibrium system from the following changes N2 (g) + 3 H2 (g) ⇌ N2H4 (g) ΔH = 92.5 kJ a. Favors the reactant side b. Favors the product side c. No shifting occurred a) When the volume increases? b) When a catalyst is added? c) When vessel is compressed? d) When temperature of the system is decreased?

How does the analyzed vinegar sample conform with the FDA standards?

True or false    The first aid for chemicals gotten in eyes or on skin is to wash the eyes or skin immediately with water for at least 15 minutes

In the ointment slap experiment, which of the following best describes what you saw when mixing stearic acid and oil?     Stearic Acid did not melt and stayed solid in oil     Stearic Acid melted in oil upon stirring creating a yellow oily liquid     Stearic Acid created a white creamy liquid     Stearic Acid soldified instantly after melting when oil was added

Carla is using a fertilizer that contains nitric acid. How is nitric acid classified? strong acid weak acid strong base weak base Save and Exit Next Mark this and return ContentViewers/AssessmentViewer/Activit.

This pre-analytical variable can have an effect on chemistry tests which are read visually by spectrophotometry:   Question 8 options:   all answers are correct   icterus   lipemia   hemolysis

Table 1. Emulsion Formation Emulsion has formed (Yes or No) NO es 1. From the results in Table 1, can you say that the soap is an emulsifying agent, a substance able to cause nonpolar and polar substances to mix? How did you reach your conclusion? Fron Sample Water Water plus oil Water plus oil plus soap Hydrophilic head LAB WORKSHEET- Experiment 11 Ester Hydrolysis and Soap Making Na 0. No. of Layers Cloudy or Clear Clear Clear cloudy 2 2 water is t 2. The products of the saponification reaction you performed were fatty acid sodium salts and glycerol. Shown below is a long chain fatty acid sodium salt. The molecule is amphiphilic because it has a polar end (hydrophilic head) and a nonpolar portion (hydrophobic tail). HO Hydrophobic tail is able a) What part of the molecule interacts with water? Polar bond interacts w/water CH3 b) Which part of the molecule interacts with a nonpolar substance like grease? nonpolar interacts w/ grease 32

Can you please provide steps for how to answer the following? This is not a graded assignment, it's just practice questions for no credit.  The concentration of the stock glucosamine solution is 100 mM. A student took 0.5 ml of this stock solution and added it to a test tube containing 24.5 ml of water. The student then took 1 ml out of the diluted solution and added it to another test tube containing 9 ml of water. The concentration of glucosamine in the second test tube will be: a. 0.4 mM b. 0.8 mM c. 1.2 mM d. 1.6 mM e. 0.2 mM. If you took 10 ml out of a protein stock solation of 0.25 mg/ml and added it to a bottle containing 40 ml of buffer and 500 ul of cofactor. What will be the final concentration of the protein in the bottle? a. 55.5 ug/ml b. 45.5 ug/ml c. 52.5 ug/ml d. 49.5 ug/ml e. 65.5 ug/ml

MULTIPLE CHOICE 1. Which of the following will give positive test when tested with Fehling’s test? * A. formaldehyde B. pentane C. acetone D. 2 pentanone 2. It is an insoluble soap. * A. scum B. detergent C. enzyme D. soap

In diluting acid solution, which of the following statements are correct?   I.    Add the acid into distilled water to dilute the acid solution II.   Add distilled water into acid to dilute the acid solution III.  Use serological pipette in transferring acid into a beaker containing distilled water IV.  Use serological pipette in transferring distilled water into a beaker containing acid     II and IV     I and IV     I and III     II and III

Please help me answer this.

If propylene glycol is found to be contaminated with 1.2 ppm of solid foreign substance, what is the amount of solid contaminant in 1 gallon of propylene glycol?   a 0.57 mg   b 1.20 mg   c 4.52 mg   d 4.65 mg

Please refer to the image attached below and answer the following question. Thanks What referrals would you give to her and in what order?

Hi, I need help with this step-by-step please thank you.

researchers working in a chemistry lab were examined anatomical structures of the brain using concentrated formaldehyde solutions. Once their studies concluded there remained 1.5 gallons of the substance and the researcher decided to pour this down the drain. In this case, they directly violet regulations put in place by which office?1. Office of research integrity 2. Institutional animal care and use committee3. Occupational safety and health administration 4. Institutional review board

1.      A 75-year-old man is given an infusion of lidocaine for the control of ventricular tachycardia. A dose adjustment is required. Which of the following parameters would be the most important in selecting a new infusion rate that is therapeutically effective but non-toxic?   A.    Bioavailability B.     Clearance C.     Glomerular filtration rate D.    Volume of distribution       1.      A 15-year-old girl has severe cramping pain that begins a few hours before the start of her menstrual flow. She says that the pain has occurred monthly for the past 9 months. She also complains of headache and of being very tired during the menstrual period. Which of the following is the most appropriate therapy?   A.    Acetaminophen B.     Celecoxib C.     Dexamethasone   D.    Ibuprofen

Which of the following are first aid measures for glacial acetic acid? Select one: a. If swallowed, rinse mouth with water (unless the affected person is unconscious). Consult a physician.  b. If in contact with the eyes, flush eyes with water for 15 minutes. Consult a physician and continue to wash eyes with water during transport to the hospital. c. If in contact with the skin, remove contaminated clothing and wash affected area with soap and water for at least 15 minutes. Consult a physician.  d. All options are correct. e. If inhaled, move the affected person to fresh air and give artificial respiration if they are not breathing. Consult a physician.

Don't give handwritten answers please name the two compounds shown in the image

Directions: Read each question carefully. Choose the letter of the correct answer. 1. Who were the first people to believe that soap-like material can treat skin diseases? a. Babylons 2. Why did soap-making become widespread in the 18th century? a. It was known to treat skin diseases. b. It was used for laundering and washing with much less effort. c. It was known as a luxurious cleaning agent among wealthy people. d. It was used to advertise campaigns on personal hygiene and health. 3. Which of the following is NOT an ingredient in soap-making? b. Egyptian c. Greeks d. Romans c. natural raw material d. vegetable oils a. animal fats b. hydrocarbon from petroleum 4. Which of the following forms scum or film when used in hard water? a. detergent 5. What alkali can be added to make hard soap? a. Caustic potash 6. What is the use of the hydrophobic end of the chemical composition of soap and detergent? b. soap c. both a and b d. none of the choices b. soap c. Potassium hydroxide d. Soda…

Why is the glucose assay one of the most common analytical test performed in clinical chemistry.

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A1L TPN order is written for 400 mL 10% Dextrose, 300 mL 4.25% amino acids, and a total of 37 mL of additives. How much sterile water for injection should be added? a. 55 mL b. 137 mL c. 163 mL d. 263 mL

Use the MSDS for oxalic acid dihydrate to identify the hazards with which it is associated. Choose all that apply. skin irritant   eye irritant   skin permeator   eye corrosive   ingestion hazard   inhalation hazard   None of the above are hazards associated with oxalic acid dihydrate.

What is the purpose of formaldehyde in embalming fluid? a. it acts as a surfactant b. it acts as a preservative c. it acts as a vehicle d. it acts as a buffer

Part F Why is it a good idea to perform three trials at each concentration? How would you modify the experiment to produce more reliable results? BIUX X, Font Sizes A 三ョE三 ヨ Characters used: 0/15000 VI 2:1 !!!

Explain the function of an emulsifier. Relate your explanation to your observation in the emulsification test. Samples used: Test tube 1: 1 mL coconut oil + 5 drops 0.1% bile salt solution Test tube 2: 1 mL coconut oil + 5 drops H2O + tiny crystal of cholesterol Test tube 3: 1 mL olive oil + 5 drops 1% aqueous solution of lecithin