Calculate M, M, and the polydispersity index for a hypothetical polymer sample that contains equimo- lar amounts of polymer having molecular weights of 30,000, 60,000, and 90,000.
Q: 9
A: This reaction is called diazo-coupling reaction In this reaction, benzene diazonium ions are weak…
Q: The solubility of CO2 in h2o is very low in air (1.05e-5 M at 25 C) because the partial pressure of…
A: The objective of this question is to find the partial pressure of CO2 required to dissolve a given…
Q: A sample of neon gas occupies a volume of 6.57 L at 67.0°C and 315 torr. If the volume of the gas…
A: The objective of this question is to find the resulting gas pressure when the volume and temperature…
Q: Help please
A: a.) Percent yield is calculated from the ratio of the experimental yield to the theoretical yield,…
Q: Lysine catabolism begins with reductive amination of a-ketoglutarate to give saccharopine in a…
A: Step 1:
Q: Draw the product of the reaction shown below. Use a dash or wedge bond to indicate the…
A:
Q: Please don't provide handwriting solutions..
A: The objective of this question is to calculate the pH of a solution during a titration process. The…
Q: synthetic polymers: Draw AIBN + heat or light.
A: Step 1: Step 2: Step 3: Step 4:
Q: Predict the structure of the product of each of these reactions. If no reaction occurs write NR…
A: The final product is a carboxylic acid. Aldehydes can be converted to carboxylic acids when it is…
Q: Determine ∆S° for 2 O₃(g) → 3 O₂(g). Substance Sf° (J/mol・K) O₃ (g) 239 O₂ (g) 205
A:
Q: please help
A: The objective of this question is to write a balanced chemical equation for the reaction between…
Q: Determine the person by mass of a solution prepared by dissolving 45.8 g NaCIO4 in 275 g of water.
A: The objective of this question is to calculate the percent by mass of a solution prepared by…
Q: Please help
A: 2. Tollens' reagent is commonly used to test for the presence of aldehydes but does not typically…
Q: Sodium hydroxide is used to partially neutralize sulfuric acid from the one-pot Friedel-Crafts and…
A: To deprotonate a phenol with a pKa of 10.0, you would need a base with a higher pKa of its conjugate…
Q: Help with questions please
A: Step 1:Answer 10Option D is correct as 2,4-dinitrophenyl Hydrazone derivative test a reddish orange…
Q: Please don't provide handwriting solution.
A: Step 1:When 25.00 mL titrant (HI) is added: Mmoles of methylamine (CH3NH2)= Molarity × Volume= 0.450…
Q: Question 20
A: The equation is balanced, only 1 mol of Silver nitrate is needed to react with 1 mol of sodium…
Q: 0. CH3-CH2- .CH. O CH3- -CH21 NH3 glutamate mutate coenzyme B12 HN CH3 CH3 CH2-CH2-CH- HN CH3…
A: Step 1: Step 2: Step 3: Step 4:
Q: CI + ΑΙ CH2C12 4 + HCI
A: Step 1: Step 2: Step 3: Step 4:
Q: Calculate the freezing point and boiling point of each aqueous solution, assuming complete…
A:
Q: Draw two major enantiomers formed in this reaction. Use a dash or wedge bond to indicate the…
A: Step 1:
Q: Please please please answer everything super super fast
A: Step 1:.
Q: A novel new method of peptide synthesis involves formation of an amide bond by reaction of an a-keto…
A: Step 1: Step 2: Step 3: Step 4:
Q: 46. The tabulated data were collected for this reaction: CH3Cl(g) + 3 Cl2(g) CC14(g) + 3 HCl(g)…
A:
Q: 2 1/1 point calculate AS for each of the reactions Fe2O3(s) + 3H2(g) 187 J/K 143 J/K 213 J/K 119 J/K…
A:
Q: balance the equation in the photo
A: The objective of this question is to balance the given chemical equation. Balancing a chemical…
Q: What is the pH when 10 mL of a 0.15 M NaOH solution is added to 25 mL of a 0.1 M solution of benzoic…
A: Given: pH=???;VNaOH=10mL;[OH−]=0.15M;VHBz=25mL;[HBz]=0.1M;pKa=4.20Step 1: Write the reaction…
Q: In thermodynamic of the dissolution of Borax lab, the student's graph is below. Calculate AS? (R=…
A: A linear regression of lnKsp vs 1/T graph gives a straight line. Through this, we can get…
Q: Only typed solution No AI generated solution
A: The objective of the question is to calculate the wavelength of a photon given its energy and…
Q: A concentration cell is constructed of silver electrodes at 25∘C, and the half cells contain…
A: A concentration cell is a type of electrochemical cell that generates electrical energy from the…
Q: 12H2O, Write the equation for the other half-reaction, called the dark reaction, for…
A: The objective of the question is to write the equation for the dark reaction, also known as the…
Q: Choose the characteristic that is NOT TRUE of equilibrium expressions. Products generally appear in…
A: The objective of the question is to identify the statement that is not true about equilibrium…
Q: Hydrogen chloride is an important compound, and when mixed with water, it generates hydrochloric…
A: The objective of the question is to understand the effect of the addition of more HCl gas on the…
Q: 7. Copper metal crystallizes in a face-centred cubic structure. If the atomic radius of copper is 64…
A: The objective of this question is to calculate the volume of a unit cell of copper, which…
Q: Name a list of anti seizures or antihistamines drugs that consist of aromatic compounds?
A: The objective of the question is to identify anti-seizure and antihistamine drugs that contain…
Q: Normalize the following wavefun (a) Y=sin(nx/L) 0≤x≤L
A:
Q: Draw structural formulas for organic products A and B in the window below. -CI Li pentane H₂O A B •…
A: Step 1:Alkyl chloride reacts with Lithium to form alkyl lithium . A is cyclopentyl lithium. Step…
Q: Name the following alcohol. OH H3C CH3 CH3 CH3 ☑
A: EXPLANATION: The molecule shown in the image is an alcohol. To name it, we follow the rules of…
Q: Can you provide a mechanism for this reaction? I’d also like maybe a sentence or two explaining each…
A:
Q: Draw one of the two enantiomers of the product of this hydrogenation reaction. Use a dash or wedge…
A:
Q: Can you provide a mechanism for this reaction?
A: I have assumed the bigger group as (S) so that I could explain mechanism easily but still you have…
Q: Propane reacts with oxygen to produce carbon dioxide and water according to the following equation.…
A: Step 1:
Q: Show how you would synthesize the following compound using 4-methylhex-1-ene starting material and…
A: Step 1: Grignard reaction of 4-methylhex-1-ene with 2-bromopentane extends the carbon chain. The…
Q: Give Product Na OE t E+ OH
A: In organic chemistry, a carbonyl-containing compound undergoes condensation reaction in which one…
Q: Draw structural formulas for the two compounds you could use to prepare the amine shown by reductive…
A: To form the given structure via reductive amination, we prepare it using a ketone and a secondary…
Q: Macmillan Learn A 23 mm diameter glass marble with a mass of 19 g rolls without slipping down a…
A: Step 1:Step 2:Step 3:
Q: Draw the major product of this reaction. Ignore inorganic byproducts. N 1. CH3MgBr 2. H3O+ ⑤
A:
Q: Please don't provide handwritten solution ....
A: Step 1: Step 2: Step 3: Step 4:
Q: The speed of an ion in a particle accelerator is doubled from 0.41c to 0.82c. The initial…
A: Step 1:Step 2:Step 3:
Q: Need help please and thank you
A:
Please help me with the question below. A detailed explanation to aid in understanding is welcome.
Step by step
Solved in 2 steps with 2 images
- Calculate Mn, Mw and the polydispersity index for a hypothetical polymer sample that contains equimolar amounts of polymer having molecular weights of 30,000, 60,000, and 90,000.Calculate Mn, Mw and the polydispersity index for a hypothetical polymer sample that contains equal weights of polymer having molecular weights of 30,000, 60,000, and 90,000.The relative electrophoretic mobilities of a 30-kDa protein and a 92-kDa protein used as standards on an SDS– polyacrylamide gel are 0.80 and 0.41, respectively. What is the apparent mass of a protein having a mobility of 0.62 on this gel?
- The relative electrophoretic mobilities of a 30-kDa protein and a 92-kDa protein used as standards on an SDS-polyacrylaide gel are 0.80 and 0.41. What is the apparent mass of a protein having a mobility of 0.62 on ths gel?what is Optical rotatory dispersion and circulatory dichroism method for protein binding?You obtained the following raw data when setting up a Bradford standard curve: BSA (mg/ml) Absorbancy 595nm 0 0.225 1 0.310 2 0.420 3 0.510 4 0.610 5 0.720 6 0.810 7 0.915 8 0.950 9 0.980 10 0.990 After blanking against a bradford-dH2O sample, the protein concentration of an unknown sample was determined using the same method and an absorbancy of 0.523 was obtained. Set up a standard curve, excluding outliers (experimental and statistical) and determine the protein concentration in the unknown sample in mg / ml (up to 3 significant figures).
- One common way to determine phosphorous in urine is to treat the sample after removing the protein with molybdenum (VI) and then reducing the resulting 12-molybdophosphate complex with ascorbic acid to give an intense blue-coloured species called molybdenum blue. The absorbance of molybdenum blue can be measured at 650 nm. A 24-hour urine sample was collected, and the patient produced 1122 mL in 24 hours. A 1.00 mL aliquot of the sample was treated with Mo (VI) and ascorbic acid and diluted to a volume of 50.00 mL A calibration curve was prepared by treating 1.00 mL aliquot of phosphate standard solution in the same manner as the urine sample. The absorbances of the standards and the urine sample were obtained at 650 nm and the following results were obtained. ppm, P aBSORBANCE (A) 1.003.00 0.230 2.00 0.436 3.00 0.638 4.00 0.848 Urine sample 0.518 ffind the slope and intercept, then graph it.The absorbance of an iron thiocyanate solution containing 0.00500 mg Fe/mL was reported as 0.4900 at 540nm. Calculate the specific absorptivity including units of iron thiocyanate on the assumption that a 0.100 cm cuvette was used.In order to improve the peptide separation by using a HPLC system, trifluoroacetic acid acts as mobile-phase modifier was added during the preparation of mobile phase. The preparation was performed by a postgraduate student as following:“2.851 g trifluoroacetic acid (MW: 114.02 g/mol) was made up to 500 cm3 in a graduated flask. To this solution, 50 cm3 of ethanol was added, and after mixing the mobile phase was placed in the solvent reservoir and pumping was commenced at 1.5 cm3 min-1.”Based on the given preparation procedure, identify THREE mistakes that were made.
- You obtained the following raw data when setting up a Biuret standard curve: BSA (mg/ml) Absorbancy 540nm 0 0.158 1 0.210 2 0.260 3 0.305 4 0.360 5 0.410 6 0.455 7 0.510 8 0.530 9 0.550 10 0.554 After blanking against a biuret-dH2O sample, the protein concentration of an unknown sample was determined using the same method and an absorbancy of 0.251 was obtained. Set up a standard curve, excluding outliers (experimental and statistical) and determine the protein concentration in the unknown sample in mg / ml (up to 3 significant figures).Write with the reasons why a separation will occur when a mixture of polypeptides with isoelectric points 4,3, 8,7 and 9,2 is applied to a column containing an anion-exchanging filler.what weight of betazole phosphotungstate might be expected in the assay of 0.1550 g sample of betazole hydrochloride containing 98% C5H9N3.2HC? Gravimetric factor = 0.0909