4. A sample of the amino acid cystine has a specific rotation of -68°. Pure (-)-cystine has a specific rotation of -339°. What are the mole percentages of the levorotatory and dextrorotatory enantiomers in the sample? NH₂ OH HO NH₂ cystine

4. A sample of the amino acid cystine has a specific rotation of -68°. Pure (-)-cystine has a specific rotation of -339°. What are the mole percentages of the levorotatory and dextrorotatory enantiomers in the sample? NH₂ OH HO NH₂ cystine

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: What is the volume of the following? A. 25g iodine; density=4.93g/cm³ B. 226g carbon;…

A: Given : A. 25g iodine; density=4.93g/cm³ B. 226g carbon; density=0.089g/cm³ A. 6.00cm³ bromine;…

Q: A house has 4 rooms to paint and each room has an average of 750.0 ft2 to paint. if 1 quart can of…

A: Given: House has 4 rooms to paint. Area of each room = 750.0 ft2 1 quart of paint covers 125 ft2.

Q: where did the 1.479 come from?

A: Solution : Your doubt arises in the given step: 4.93 = 4.46 + log [( 40 + 3.5V mL) / (60 - 3.5V mL)]

Q: 9. If you pour 60 grams of KCl into 100 g of water at 70°C, and stir vigorously, which type of…

A: 9. Given information, Mass of KCl = 60 g Mass of water = 100 g Temperature = 70oC

Q: mol stock solution of silver A chemist makes 590. mL of silver perchlorate (AgClO,) working solution…

A: • The values provided in the question are:- i) Initial volume of silver perchlorate solution ,V1 =…

Q: 2. How are intensive properties different from extensive properties? What are other examples of…

A: Answer: Properties of the substances can be divided into two categories: 1. Extensive properties 2.…

Q: mol kg x m² 3.95× 108 mol 8x cm²

Q: An aqueous solution at 25 °C has a H,0 concentration of 3.8 x 10 - 10 M. Calculate the OH…

A: The concentration of OH- is calculated as follows

Q: Which product would be formed in the reaction below? Brz ? H;O а. Br

Q: Al has density 2.70 g/cm3. If a solid Al cylinder is added to a cylinder which has 19.2 mL H2O, the…

A: To calculate the mass of the Al cylinder.

Q: Solubility2. At room temperature, table sugar has a solubility of 200. g in 100 mL of water. In…

A: Given: For boiling water Solubility of sugar = 500g/100g of water. Mass of sugar added = 432g Volume…

Q: laboratory procedure calls for making 510.0 mL of a 1.3 MKNO3 solution. How much KNO3 in grams is…

Q: 5. Calculate molar mass of Cu3(PO4)2. Report to the correct significant figures and units.

A: Atomic mass: Copper = 63.54 gm/mole Phosphorus = 30.97 gm/mole Oxygen = 16 gm/mole One formula unit…

Q: 2. A chemistry teacher searching for his golf ball in the trees this summer found a magical pool of…

Q: PV 1.00 atm x70 L n RT Lxatm 0.0821 x 295 К Кхmol

Q: calculate the volume in cm3 of 1,555,738,322 ng of manganese. the density of manganese is 7.20 g/cm3

Q: 0.45 mol ethanol V= ? L Express your answer using two significant figures.

Q: 149.175 g 25.5 mL

A: Significant figures – calculation rules are as follows, Significant figure is a non-zero number…

Q: oncentrated ammonia has 14.8 M, express this in % w/w. The density of NH₃ is 0.899 g/mL.

A: A concentrated ammonia has 14.8 M, express this in % w/w. The density of NH3 is 0.899 g/mL.

Q: 1.2×10−2 mol ethanol V= ? L Express your answer using two significant figures

A: In the given question we have to calculate the volume of ethanol, first of all we have to calculate…

Q: A 480-pound alloy (which is just a mixture of metals ) containing 30% silver was mixed with an alloy…

A: Mass of alloy with 30% silver = 480 pound Mass of alloy with 55% silver taken = x pound % silver in…

Q: 1. КОН / Н2О L 2. H30* 1. l2, NaOH / H20 M 2. HСI

A: Organic Transformation for the given Mentioned reaction 1st Basic Hydrolysis 2nd Iodoform followed…

Q: 0.15 M NAC2H3 O2 Express your answer to two decimal places. ? pH =

Q: Question 11: You are a gemstone expert studying samples of various materials. Gemstone Hambergite…

A: From the given gemstones, the most massive gemstone is = Smoky Quartz (density = 2.65 g/mL) The…

Q: concentration

Q: A chemist determines by measurements that 0.035 moles of hydrogen gas participate in a chemical…

A: Given, Moles of hydrogen gas participate = 0.035 mol. The mass of hydrogen gas participate is:

Q: A chemist prepares a solution of mercury(1) iodide (Hgl,) by measuring out 0.01l g of mercury)…

Q: A chemist must dilute 20.6 mL of 22.0 mM aqueous aluminum sulfate (Al, (SO,)) solution until the…

A: In dilution, the millimoles or moles of solute remains same before & after dilution (Dilution…

Q: (2.23 x 10^3 g) (9.0 x 10^-3 g)/ 10.1 x 10^-7 s^2=

A: The given quantities are in the units of grams and seconds. The expression has been solved below.

Q: An engineer wants to galvanize (to prevent corrosion) a 200 ft x 150 ft mild steel sheet with zinc.…

A: Given data:Dimensions of the steel sheet that is to galvanized with zinc-Length = 200 ft , Breadth…

Q: 3. Calculate the mass in grams of a 525 cm³ block of lead. 1.39/c 575ch 3. 4. Calculate the volume…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Rank the following compounds from easiest to hardest at removing a proton from its methyl…

A: The rank of the above compounds from easiest to hardest at removing a proton from its methyl…

Q: 6.6 x 1021 tons = ? ng

A: 1 ton = 907.185 kg1 kg = 1000 g1 g = 109 ng

Q: Liquid hexane (CH (CH,) CH,) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide…

Q: You must show calculations in the space pr receive credit. he line to 1. The following data was…

A: Given, Mass of crucible = 24.525g. Mass of crucible and mixture = 26.716g. Mass of crucible and…

Q: 1. O3 2. (CH32S or Zn, HCI d. a. b. C. HO

Q: Carbon tetrachloride, CCl4, was a popular dry-cleaning agent until it was shown to be carcinogenic.…

A: 1 mole = 6.022×1023 (Avogadro's number) The mass of one mole of molecules of a substance is known…

Q: Gm= 8.50g. Cp= 3.30 g. Mm= 7.10g 2Gc+ 1Mm+4Cp=1Sm 2. a. Is there a relationship between the mass of…

A: The objective of this question is to show the mass of one s'more is determined by combining masses…

Q: e (CH18). When octane is burned in air, it chemically reacts with oxygen gas (0₂) to produce carbon…

A: Given, Mass of Octane(C8H18); Molecular weight of O2; Molecular weight of CO2;…

Q: A chemist prepares a solution of iron(III) bromide (FcBr,) by measuring out 483, umol of iron(III)…

A: From given dataNumber of moles, n = 483mol × = 0.483 mmolVolume of solution, V = 400 mL = 0.400 LAs,…

Q: 1. Change 9 ft 3 into cm and 344 lb. to kg (round off to the tenths)

A: Given, Distance = 9 ft 3 in Also, Mass = 344 lb (a). Convert the 9 ft 3 in to cm = ? (b). Convert…

Q: You have a sample of 121.5 g of C₂H6. How many moles of C₂H6 are in the sample?

Q: kg to units of Convert 3.154 ML

A: The unit conversion can be done by multiplying or dividing the given units by appropriate numbers.…

Q: ) Ph CO0OH 2) EALI, H30* 3)PCC

A: epoxidation if alkene attack of nucleophile to epoxide oxidation of alcohol by PCC

Question

A3.

4. A sample of the amino acid cystine has a specific rotation of -68°. Pure (-)-cystine
has a specific rotation of -339°. What are the mole percentages of the levorotatory
and dextrorotatory enantiomers in the sample?
NH₂
OH
HO
NH₂
cystine

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

How many ng in 7.601 mg? Report your answer to 3 decimal places (examples 1.042, 0.050, 0.198, 3.000).
How many grams Fin 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation. Use one figure past the decimal.
A chemist prepares a solution of copper(II) fluoride (CuF;) by measuring out 1.31 mg of copper(11) fluoride into a 50 mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/1. of the chemist's copper(II) fluoride solution. Be sure your answer has the correct number of significant digits. moll. OP
0.031L = ____cL
8. L0s t213.15= 318.18K 2. A woman is 5 ft 5 in tall and weighs 140 lb. Express these values in the SI system (m, kg)
H8.
0.145 mol C2 H6 Express your answer using three significant figures. VC = mol Submit Request Answer Part C 4.66 mol C4H10 Express your answer using three significant figures. ? VC = mol
The solubility of Co (OH), in water at 25 °C is measured to be 6.4 x 10 -4 g -. Use this information to calculate K.. for ds. Со (ОН)2. Round your answer to 2 significant digits.
A 0.231 g piece of solid magnesium reacts with gaseous oxygen from the atmosphere to form solid magnesium oxide. In the laboratory a student weighs the mass of the magnesium oxide collected from this reaction as 0.309 g.
8
1. EtLi 2. aq H*
What is the product. (1.40 x 10^2) (2.16 x 10^-6)