P5B.7 The molar mass of a protein was determined by dissolving it in water,and measuring the height, h, of the resulting solution drawn up a capillarytube at 20°C. The following data were obtained.c/(mg cm)3.2214.6185.1126.722h/cm5.7468.2389.11911.990 The osmotic pressure may be calculated from the height of the column asIl=hpg, taking the mass density of the solution as p=1.000 gcm³and theacceleration of free fall as g=9.81 ms. Determine the molar mass of theprotein.

The expression relating the osmotic pressure and concentration of the solution is given below,…

Answered: P5B.7 The molar mass of a protein was…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter10: Fuels, Organic Chemicals, And Polymers

Section: Chapter Questions

Problem 119QRT

See similar textbooks

Similar questions

What is freezing point temperature of a 20% aqueous sucrose (C12H22O11) solution?
A sample of 2.05 g of polystyrene of uniform polymer chainlength was dissolved in enough toluene to form 0.100 L of solution.The osmotic pressure of this solution was found to be 1.21kPa at 25 °C. Calculate the molar mass of the polystyrene.
The molar mass of an enzyme was determined by dissolving it in water, and measuring the height, h, of the resulting solution drawn up a capillary tube at 20 °C. The following data were obtained.C/(mg cm-3) 3.221 4.618 5.112 6.722h/cm 5.746 8.238 9.119 11.990The osmotic pressure may be calculated from the height of the column, ∏= hpg, taking the mass density of the solution as p = 1.000 g cm-3 and the acceleration of free fall as g = 9.81 m s-2. Determine the molar mass of the enzyme.
13.) The vapor pressure of water at 31°C is 33.4 mmHg. Calculate the vapor pressure of water over a solution prepared from allowing 2.00 × 10^2 g of sucrose (C12H22O11) to dissolve in 3.50 × 10^2 g water at 31°C?
Calculate the freezing point depression and boiling point elevation of a solution containing 4.27g of Sucrose(C12H22O1) and 50.0g of water. (10 pts) Kf= 1.86 degree celcius/molal; and Kb=0.512 degree celcius/molal
Given that the solubility of any organic material in a given solvent is due to the intermolecular forces present between the solvent and solute, solvents like hexanes (the alkanes isomers of C6H14) are rarely used for extraction purposes. In the space provided here, suggest a reasonable explanation for this experimental observation.
If 10 g sucrose (C12H22O11) is dissolved in 500 g water What is the boiling point of the resulting solution? Kb for water = 0.512°C/m and If 10 g sucrose (C12H22O11) is dissolved in 500 g water What is the freezing point of the resulting solution? Kf for water = 1.86°C/m?
Asample of 2.05 g of polystyrene of uniform polymer chain length was dissolved in enough toluene to form 0.100 Lofsolution. The osmotic pressure of this solution was found to be 1.21 kPa at 25°C. Calculate the molar mass of thepolystyrene.a) 2.35 x 104 g/molb) 4.20x 105 g/molc) 3.05 105 g/mold) 4.20x 103 g/mole) 4.20 x 104 g/mol
The molecular mass of a polyethyleneglycol (PEG) can be quite variable; the osmotic pressure of a solution containing 1.358 g of PEG dissolved in a final volume of 420.27 mL was 30.572 torr at 25.00�C? What is the molecular mass of the compound? 199.1 g/mol 322.2 g/mol 1965.3 g/mol 164.8 g/mol
What are emulsions? Name an emulsion in which water is a dispersed phase.
A solution of 7.50mg of a small protein in a 5.00mL aqueous solution has an osmotic pressure of 6.50torr. What is the molecular weight of the protein? Assume room temperature is 25°C
Decaffeinated coffee is produced by extracting the caffeine from coffee with a solvent. Initially dichloromethane (CH 2Cl 2) was used, but concerns arose over the ill health effects of trace amounts of CH 2Cl 2 remaining in the coffee. Why is caffeine soluble in CH 2Cl 2?

SEE MORE QUESTIONS

Recommended textbooks for you

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS