Morphine should be extracted from a urine sample using solid extraction (SPE). Suggest a suitable SPE column that can be used for the extraction of morphine. The answer must be substantiated. The structure of morphine is shown in Figure 1. НО. N-CH3 НО "
Q: A compound contains only C, H, and N. Combustion of 35.0 mg of the compound produces 51.3 mg CO2 and...
A:
Q: Which carbon of the open-chain form of a sugar becomes the anomeric carbon in the cyclic form? ...
A: when a pair of stereoisomer is developed due to the difference in configuration at C1 chiral centre...
Q: U-235 collided with a neutron resulting to a nuclear fission producing La-145, Br-88, neutrons and e...
A: Given data :-
Q: HO H. NH2 H. HO, H2N Cephradine Cephalexin
A: R-S nomenclature: R-S nomenclature is used to determine the stereochemistry of chiral carbons of a m...
Q: a chemist adds 250.0 mL of a 0.053 mM sodium nitrate (NaNO, solution to a reaction flask. Calculate ...
A:
Q: If 5 moles of age are added to 5 moles of O2, what is the limiting reactant?
A: If 5 moles of Ag are added to 5 moles of O2 the limiting reactant is given below.
Q: Acrylonitrile (C3 H3N) is the starting material for many synthetic carpets and fabrics. It is produc...
A: First we have to determine the limiting reagent. Limiting reagent is that which consumed first or fi...
Q: Use the References to access important values if needed for this question. cording to the following ...
A: Given benzene in excess amount
Q: It is a number that use to keep track of how many electrons an atom has? Select one: a. formal...
A: The answer is given below
Q: compound C?
A:
Q: tion 48 Vhich structure is a portion of 1. chitin 2. glycogen 3. Dextran 4. Cellulose? aft4) bond A ...
A:
Q: The following reaction has an average rate of disappearance of C2H5NO2 of 0.02005 M min 1 in the fir...
A:
Q: A chemist must prepare 700. mL of 17.0 µM aqueous zinc oxalate (ZnC,0,) working solution. She'll do ...
A:
Q: Describe at least two methods used to measure pH.
A: Methods of measuring pH.
Q: )0.0100 M in HCl and 0.0320 M in benzoic a ) 0.0100 M in NaOH and 0.075 M in Na,CO )0.0100 M in NaOH...
A: We are given different solutions of mixtures of acids in acids ( part a and b) and mixtures of bases...
Q: Question 2 The following reaction has an average rate of disappearance of H2 of 0.00135 M min in the...
A:
Q: tö access important values if needed for this question. When the following molecular equation is bal...
A: In order to write molecular equation we have to first write reaction.
Q: What number of Ti atoms and what amount (moles) of Ti atoms are in 700.0 g of titanium? atoms Ti mol...
A: Given: Mass of titanium = 700.0 g.
Q: Which of the following statements concerning sugar polymers is false?
A: Answer: In the case of sugar polymers, the branched polymers are more water-soluble than linear poly...
Q: I. Define the following terms: g. Cream h. Lotion i. Cleansing and cold cream
A: A colloid is a mixture is two or more substances mixed together but not chemically combined They ar...
Q: A certain gas is present in a 13.0 L cylinder at 4.0 atm pressure. If the pressure is increased to 8...
A:
Q: For each reaction in the table below, write the chemical formulae of any reactants that will be oxid...
A: The chemical species is oxidized when it adds oxygen or removes hydrogens or removes electrons. The ...
Q: A 0.9550 g sample of ASA was dissolved in 40.1 mL of standard NaOH. The excess NaOH was neutralized ...
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for you...
Q: For nonideal solution, like ethanol and water the less volatile component in this mixture has a ____...
A: Ideal solution is the solution which follows Roult's law and non ideal solution is the solution whic...
Q: Calculate the pH value of the resulting solution by titrating 0.1 molar ammonium hydroxide 100 ml wi...
A: Given that, 100 mL of 0.1 M ammonium hydroxide was titrated with 0.1 M of HCl. The Kb of ammonium hy...
Q: In a solutions, it is a substance that is usually present in greatest amount is known as? Select on...
A:
Q: ionization equation
A:
Q: Question 13 Refer to the schematic diagram below, what is compound D? Conc. H,SO, a-naphthol (-) (*)...
A: A question based in introduction to organic chemistry that is to be accomplished.
Q: An unknown compound has the following chemical formula: Mn(CN) sub x where x stands for a whole numb...
A:
Q: pose 5.056 grams of an unknown solute are dissolved in 50.0 ams of phenol (C6H50H). The resulting s...
A:
Q: What is a unit cell? Sketch a unit cell and label the dimensions a, b, and c and the angles 6. alpha...
A: The smallest repeating unit of the crystal lattice is the unit cell, the building block of a crystal...
Q: Write soluble or insoluble and identify the nature of the solutes on the given solvent: Solute
A: The basic concept behind solubility is like dissolves like, i.e., polar solvents readily dissolves p...
Q: Hi! Can you help me with these? Assignment: Balance these problems. Show your solution. (kindly re...
A: For balancing the reaction, we must need to follow one thing that is number of atoms in L.H.S is equ...
Q: Calculate the molar solubility of yttrium iodate in a 0.0500M solution of magnesium iodate, Mg(IO3)2...
A:
Q: If a strong acid is added in a buffered solution, the hydronium ions react with the conjugate base/s...
A: Consider a buffer solution of weak acid (HA) and A-(salt).
Q: Predicting acid or base strength from the conjugate relative pH of 0.1 M aqueous solution species I0...
A: Answer: In this problem we have to arrange the solution in order of increasing pH.
Q: Gaseous oxygen and carbon dioxide are placed in a sealed flask. After several minutes, the gases are...
A: Since it is is a property of gas that it forms always homogenous solution that is why here both gas...
Q: 2. Identify the kinetic and thermodynamic products of the following reaction. CI HCI (1 еq) Draw a d...
A:
Q: what is compound C
A: In first step give positive test of carbohydrate by treatment with Alpha-naphthanol/H2SO4. Now perfo...
Q: 300.0 mL of a 0.450 M solution of NaI is diluted to 700.0 mL. What is the new concentration of the s...
A: Given that, M1=0.450 M , V1=300.0 mL M2=? , V2=700.0 mL
Q: nes b) ethers
A: Isomers are the compounds which have same chemical formulae but have different arrangement of atoms ...
Q: The Henderson-Hasselbalch equation is formulated based on the ionization of a weak acid O True O Fal...
A:
Q: What kind or type of isomers are the compounds given below? Arrange them in the order of increasing ...
A:
Q: Hemoglobin is a large molecule that carries oxygen in human blood. A water solution that contains 0....
A: Osmotic pressure = concentration × gas constant× temperature...
Q: Higher Rf value will be obtained from dextrin than that of glucose in a reverse-phase TLC. O True O ...
A: Rf means Retardation factor. Rf value means the ratio of distance travelled by solute to the distan...
Q: Calculate osmotic pressure for 0.10 M Na3PO4 at 20°C
A: Answer: Osmotic pressure is the pressure, that is required to be applied on the solution side stop t...
Q: What is the hydronium-ion concentration of a 5.58 x 104 M solution of p-bromobenzoic acid, BrCg H4 C...
A:
Q: buffer solution is formed by adding 0.320 moles of solid sodium lactate, NaC₃H₅O₃, to 600.0 ml of 0....
A:
Q: of red algae. The sample was hydrolyzed and monosaccharide units were analyzed in different colorime...
A:
Q: OH H- H- OH HO-C-H H -C- H-C-H OH Which of the following figures represents the Haworth projection o...
A:
Step by step
Solved in 2 steps
- c) An essential amino acid with the systematic name 2-amino-3-phenylpropanoic acid. It has pka1 = 1.83 and pka2 = 9.13. i. iii. Draw the deprotonated form of this amino acid. Calculate the p/ of this amino acid. Show the form of this amino acid at pH=5. d) A polyester is prepared by reaction of pentanedioic acid with ethane-1,2-diol. Show the molecular structure of this polyester.If an acid with a pK₂ of 5.0 is in an aqueous solution of pH = 5.5, what percentage of the acid is present in its acidic form? Express your answer using two significant figures. ΑΣΦ pH = ? At what pH will 75% of the acid exist in its acidic form? Express your answer using one decimal place. 5 ΑΣΦ % ?Select the single best answer. The amino acid glycine can be condensed to form a polymer called polyglycine. Identify the structure below that represents one monomer unit of polyglycine. H. N-C- H-C-H H. N-C エ ーCl HICI I HICI I エ ーZ HIN HIN
- You're an undercover biological weapons agent who has been given an unknown liquid - you suspect that it is just sugar water (because you drank some by accident - you know you're not supposed to have food or drink in the lab, but you do it all the time, and it tasted sweet - plus you didn't die!) One of the tests you need to run is to see if it contains protein (remember, foreign proteins can cause severe immune responses which can be a powerful biological weapon). You set up 3 test tubes each with 10mL of the following: distilled water, gelatin solution and the unknown. The distilled water is clear, the gelatin solution is clear with a beige tint, and the unknown is clear. You use Biuret's Reagent - a dark blue dye which will turn a liquid sample purple in the presence of protein. 1. When Biuret's Reagen is added to the unknown, predict what color you expect it to become if the unknown is just sugar water: [a] (no change | blue | purple). 2.You included both a positive and negative…Professor Rowan is preparing for his experiment in Sinnoh Lab. The structures of the substances that he will use are presented below: Substance Turtwig Substance Piplup Substance Chimchar H 'o H H. H. H' H. H Molar Mass: 106.12g/mol Molar mass: 122.12g/mol Molar mass: 92.14g/mol A. What is/are the IMFA present in each of the substances? (LDF - London Dispersion Forces, DDF- Dipole-dipole Forces, HB- Hydrogen Bonding) B. Determine the most possible melting point of each of the substances. (Possible melting points: 122 °C, -26 °C, -95 °C) C. Rowan's Apprentice, Dawn, needs a solid starting material in her experiment at room temperature (at 25°C). Among the three substances, what is Dawn's starting material?Biological Macromolecules Identifying and drawing peptide bonds Draw the structure of threonylmethionine, a dipeptide made from threonine and methionine, as it would appear at physiological pH. $ 4 Explanation % 5 Click and drag to start drawing a structure. Check 6 MacBook Pro & 7 * 00 8 ( 9 X O 0:0 3 0 è D ▬▬ Ⓒ2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | O + 11 Ⓡ 2/5 =
- A solution contains alanine and serine. What are the possible dipeptide products that can form from this mixture? Н HL HL N -0-H N CH3 alanine (ala) CH₂OH serine (ser) Enter each answer as two three-letter codes joined with a dash (e.g. ala-ala). Check Next (1 of 2)what is a reason why company leaders would add melamine to their product to make the protein content appear higher than the actual amount of the product? Describe two possible reasons for why food safety inspectors often use an overall nitrogen content test, instead of Bradford assay, to determine the protein content in a product.Ascorbic acid, H₂C6H6O6, is a diprotic acid usually known as vitamin C. For this acid, pk1 is 4.10 and pKa2 is 11.79. When 125 mL of a solution of ascorbic acid was evaporated to dryness, the residue of pure ascorbic acid had a mass of 3.30 g. Calculate the molar concentration of ascorbic acid in the solution before it was evaporated. i What was the pH of the ascorbic acid solution before it was evaporated? pH = i What was the concentration of the ascorbate ion, C6H6062, before the solution was evaporated? i M M
- PAP Chemistry-2903012-42100P-1/ Le Chatelier's Principle/ Lesson 128 2. Zinc (Zn) granules react slowly with dilute hydrochloric acid (HCI), but much faster if the acid is concentrated. Zn(s) 2HCI(aq)ZnCl2(aq) + H2(g) Zinc + Hydrochloric Acid Zinc Chloride + Hydrogen What causes the reaction to proceed faster with concentrated acid? The concentrated hydrochloric acid causes more hydrogen gas to be produced. The pressure of hydrogen gas molecules increases as concentration increases. The concentrated hydrochloric acid molecules move faster than in dilute acid. There are more collisions between the zinc and concentrated hydrochloric acid. PREVIOUCarbohydrates or sugars can be represented into two forms Fischer projections (open chain) or Haworth projections (ring structures). Let us identify the functional group present in carbohydrates Fischer projections of D-allose and D-fructose. H,C H-C-OH C=0 H-C-OH HO-C H-C-OH H-C-OH H C+OH H-C-OH HyC, HO. HO D-allose D-fructose a.) The functional group present in D-allose is b.) The functional group present in D-fructose is c.) The functional group common for D-allose and D-fructose isWhich statements accurately describe soap? Select one or more: Soaps are a mixture of fatty acid salts and glycerol. Soaps react with ions in hard water to create a precipitate. Soaps should be weakly alkaline in solution. aps work in solutions of any pH. Soaps are both hydrophobic and hydrophilic.