What would happen if: The alcohol was left on for 20 minutes? The safranin was added after addition of the iodine? The addition of iodine was omitted?

Q: clinical technician finds that the activity of a sodium-24 sample is 1088 cpm. What will be the…

A: The elimination half-life of a drug is defined as the time it takes for the concentration of the…

Q: volumetric flask is made to prepare a certain chemical concentration through dilution for example if…

A: Asked : There is no volumetric flasks prepare 0.2N of acetic acid from 1 N acetic acid stock…

Q: You were instructed to add 0.2 ml of kombucha to 9.8 ml of fresh tea, but instead added 2.0 ml of…

A: Dilution is defined as the ratio of stock volume to the final volume.  Here, final volume is the sum…

Q: how many mL diluent would you add to get 1600mL of 3/4 strength solution

A: Answer:- Part 1: 10 Oz cans use to get 1200 ml & sustacal is- 400 ml. Part 2: Diluent you add…

Q: What is the correct mechanism in alcohol chemical/drug

A: The pleasure effect produced by alcohol is due to the induction of an increased level of dopamine…

Q: How much 10% dextrose solution and 20% dextrose solution should be mixed to prepare 1 l  12.5%…

A: Dextrose is an intravenous solution made up of a mixture of water and dextrose and used in low blood…

Q: Emily added so much anhydrous na2so4 to dichloromethane solution of caffeine that no liquid can be…

A: Given:Emily added so much anhydrous na2so4 to dichloromethane solution of caffeine that no liquid…

Q: Which of the following is an allylic alcohol? HOCH=CHCH2CH3 CH2=CHCH(OH)CH3 CH2=CHCH2O(CH3)…

A: The carbon atom that connects the double bond to the hydroxy group is also bound to one other carbon…

Q: Include an information about the faulty mechanism in alcohol chemical

A: Alcohol is an organic compound having hydroxyl (OH) group as a functional group along with a…

Q: Which of the following compounds will not discharge the brown/orange color of bromine? (Negative…

A: Bromine test is a qualitative test to detect the presence of unsaturation, phenols or anilines. The…

Q: Calculate pNF concentration in each cuvette using Beer-Lambert’s Law.  ε = 18,000 M-1 cm-1; b =…

A: Spectroscopy is the interaction between electromagnetic radiation and matter. If transmittance T…

Q: Discuss what will happen when a chronic alcoholic person takes 3 tablets of paracetamol 500mg

A: Consumed alcohol is metabolized in the hepatocytes of liver tissue. Alcohol metabolism increases…

Q: You have started with 0.37 g of an unknown acid. You follow the procedure outlined in the video…

A: The scale which is helpful for measuring the acidic nature or basic nature of aqueous solutions is…

Q: Ammonia-containing window cleaners are considered pH-neutral substances true or false?

A: As chemicals are dissolved in water, the pH level of the mixture is either acidic or basic. pH level…

Q: When conducting a flame test for sodium iodide, is the result positive or negative?

A: An ionic compound is one that is formed between a metal or metalloid and a non-metal. A Flame test…

Q: What is the isoelectric point of casein? Please choose one correct answer only. A. pH 6.6 B. pH 5.6…

A: Peptides are molecules consisting of 2 to 50 amino acid residues covalently linked together by…

Q: How many grams are in 1 mL for the following solution?   NS _________ this is the whole question

A: NS or Normal saline: It is nothing but a mixture of sodium chloride (NaCl) and water that is…

Q: In the image above, the substance indicated as B is a(n) ____.

A: Enzymes are biological catalysts that increase the rate of chemical reactions happening inside the…

Q: Which of the following is not a deprotonated substance: a) KOH b) LiOH c) HA d) B

A: Protonation is the addition of proton and deprotonation means the removal of the proton.

Q: This drug has the highest incidence of postanesthetic nausea and vomiting. a. Sevoflurane.??????????…

A: When a patient undergoes a surgical procedure they within a span of 24 hours may experience nausea…

Q: Give the functions of the following ingredients, then name a branded/commercial skin or hair care…

A: Ozokerite wax is dark brown or light yellow color mineral wax. It is made up of carbon and…

Q: How many H2O particles were produced by creating the following structure? * R H R R H-N-C,-c-…

A: Amino acids are monomers of protein they are linked with each other by forming peptide…

Q: How do you think alcoholic beverages of alcohol content greater than this concentration are…

A: Alcoholic beverages contain ethanol as the main component in varying proportions. They are produced…

Q: potassium

A: Potassium is incompatible with bicarbonate. Sodium bicarbonate us an antacid and taking potassium…

Q: 1. Prepare 50 ml of 50% v /v alcohol with 95% v / v alcohol. 2. Prepare 50 g of 40% w / w alcohol…

A: Multiple subparts are asked.  I will answer the first three subparts, as per guidelines.  Asked :…

Q: A. List the five tests from your lab report and answer positive or negative for the following…

A: The given structure is of aldopentose.

Q: 2. Of the following amino acids, which contains an alcohol? a b HN. HN. HN. HN. HO, HO, HO, SH NH.…

A: Introduction: Amino acids are biomolecules comprise of two functional groups; an amino group (-NH2)…

Q: 10 mL of 0.5 M CuSO₄ * 5H₂O solution from 10 M CuSO₄ * 5H₂O solution

A: CuSO₄ * 5H₂O solution is copper sulphate pentahydrate solution. The concentration of stock solution…

Q: What is the most significant safety rule in a laboratory? Explain?

A: Introduction :- In contrast to the field or factory, a laboratory is a place where scientific…

Q: What happens when you mix oil and vinegar? Why?

A: The like dissolves like rule suggest that polar solutes are soluble in only polar solvents whereas…

Q: From your data in Table 8.2 choose the correct pH for household chemical listed here. pH 6 purple pH…

A: The pH is considered as the scale, which is used to specify the basicity as well as the acidity of…

Q: Which of the following has the highest iodine content?  Which of the following has the lowest…

A: Fatty acid: These are the most common lipids. Based on the type of bonds they are classified into…

Q: What is the chemistry principle behind when (treatment: heavy cream) is subjected to room…

A: Heavy cream temperature is important for the physical characteristics of the cream. At room…

Q: Which of the following tests gives bluish green product due to the presence of carbohydrates?*…

A: Carbohydrates are polyhydroxy aldehydes or polyhydroxy ketones. Monomers of carbohydrates i.e.,…

Q: What are the relative dangers of wrong and unapproved mixtures and combinations of alcoholic…

A: Long term consumption of alcohol leads to chronic disease. It also leads to increase blood pressure,…

Q: Why should Erlenmeyer flasks hold not more than 60% of their capacity?

A: To conduct experiments and conduct research, laboratories need a variety of instruments and…

Q: How do you make 70 ml of a 60% solution??

A: The making of solutions of different concentrations can be achieved with the help of principle…

Q: How many mL of water should you add to get a concentration of 250mg/5mL?

A: The concentration of amoxicillin solution is 125 mg/5 mg. Hence, the amount of amoxicillin is:

Q: Calculate the amount of each solution needed to make 750 mL if a dextrose 25% solution given only a…

A: Given-  We make 25% dextrose of 750ml by using 60% and 5% dextrose. Use alligation method for such…

Q: FREE RESIDUAL CHLORINE IS 1. Chloramide compounds 2. hypochlorous or chloric acid 3. haloform…

A: Introduction :- The quantity of chlorine that remains in the water after a given period or contact…

Q: show the complete solution and write answers in 3 significant figures. DYE CALCULATED Rf Tartrazine…

A: Introduction The retention factor (Rf) of a particular compound is the ratio of the distance the…

Q: Which of the following is a hydroxide ion?     H3O +     H +     H2O -     OH -

A: Hydrogen is defined as the chemical element, having the symbol H. It has the atomic number 1. The…

Q: Tetrabromofluorescein is a purple dye often used in lipsticks. if the dye is purple, what color does…

A: The dye is a colored substance that constructs a chemical bond with the substrate to which it would…

Q: An IV bag contains 250 mL of a 5% mannitol solution. How many grams of mannitol are in the IV bag?

A: Mannitol - It is an osmotic diuretic which helps to produce urine by removing excess water fromthe…

Q: If a more concentrated initial solution bicarbonate was used in beaker C, would it require more or…

A: In a neutralization reaction, number of moles acid and bases are always equal at neutralization…

Q: How many ml of a 40% solution can be prepared from 42.8 mg of sucrose? How many ml of a 40% solution…

A: Given: Percent of solution = 40% Amount of sucrose= 42.8 mg