A protein has been isolated as a salt with the formula Na₂P (this notation means that there are 20 Na* ions associated with a negatively charged protein p20- The osmotic pressure of a 10.0 mL solution containing 0.265 g of the protein is 0.223 atm at 25.0 °C. Note: Reference the Fundamental constants table for additional information. Part 1 of 2 Calculate the molar mass of the protein from these data. Round your answer to 3 significant digits. Part 2 of 2 g mol Calculate the actual molar g mol of the protein. Round your answer to 3 significant digits. X S

A protein has been isolated as a salt with the formula Na₂P (this notation means that there are 20 Na* ions associated with a negatively charged protein p20- The osmotic pressure of a 10.0 mL solution containing 0.265 g of the protein is 0.223 atm at 25.0 °C. Note: Reference the Fundamental constants table for additional information. Part 1 of 2 Calculate the molar mass of the protein from these data. Round your answer to 3 significant digits. Part 2 of 2 g mol Calculate the actual molar g mol of the protein. Round your answer to 3 significant digits. X S

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

Similar questions

A certain liquid X has a normal freezing point of 7.00°C and a freezing point depression constant =Kf 7.41·°C·kgmol−1. A solution is prepared by dissolving some iron(III) chloride (FeCl3) in 700.g of X. This solution freezes at 3.5°C. Calculate the mass of FeCl3 that was dissolved. Be sure your answer is rounded to the correct number of significiant digits.
The molal boiling point elevation constant K = 1.15 °C·kg⋅mol the solution boils at 145.4 °C. Calculate the boiling point of pure X. Be sure your answer has the correct number of significant digits. °C x10 1 for a certain substance X. When 14.4 g of urea Ś ((NH,),CO) (NH₂) CO) are dissolved in 150. g of X,
When 605. mg of a certain molecular compound X are dissolved in 100. g of cyclohexane (CH₁₂), the freezing point of the solution is measured to be 6.4 °C. Calculate the molar mass of X. If you need any additional information on cyclohexane, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and t is rounded to I significant digit. 0 8 0.8 D-D X 4 G
Find the molecular weight of a protein if a 0.32-g sample in 120 mL of water has an osmotic pressure of 8.5 mmHg at 25°C. (R = 0.0821 L · atm/(K · mol
When 2.63 g of a polypeptide is dissolved in 131 mL of water, the resulting solution is found to have an osmotic pressure of 0.125 atm at 37.0 °C. What is the molar mass of the polypeptide? (Assume the volume doesn't change when the polypeptide is added.)
An aqueous solution containing 10.0 g of starch per liter has an osmotic pressure of 3.8 mm Hg at 25 °C. What is the average molar mass of starch? (Becausenot all starch molecules are identical, the result will be an average.) What is the freezing point of the solution? Would it be easy to determine the molecular weight of starch by measuring the freezing point depression? (Assume that the molarity and molality are the same for this solution.)
At 25 °C the solubility of lead(Il) bromide is 2.70 x 10 mol/L. Calculate the value of Kgp at this temperature. Enter your answer in exponential format using a capital "E (example 1.23E-4) and no units (value 2%).
A protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.170 g of this subunit was dissolved in enough water to produce 2.00 mL of solution. At 28 °C the osmotic pressure produced by the solution was 0.138 atm. What is the molar mass of the protein?
A protein (P) is separated from aqueous solution as NazoP salt. An aqueous solution of 10 mL is prepared with 0.453 g of this salt has an osmotic pressure of 0.48 atm at 25 °C. according to this information what is the molar mass of the protein (HP)? O a. 48.05 kg mol O b. 37.10 kg mol O c. 26.47 kg mol O d. 22.15 kg mol O e. 44.54 kg mol
A protein (P) is separated from aqueous solution as Na13P salt. A 14 ml of aqueous solution prepared by dissolving 0.300 g of this salt has an osmotic pressure of 0.48 atm at 25 °C. According to this information what is the molar mass of the protein (H13P) in kg mol? Do not write units, only enter numerical values. Use two digits at most for decimal numbers, use dot (.) as decimal separator (i.e. two-point-fifty-one should be entered as 2.51). Do not use comma () as decimal separator.
The boiling point of chloroform, CHCl3, is 61.700 °C at 1 atmosphere. K,(chloroform) = 3.67 °C/m In a laboratory experiment, students synthesized a new compound and found that when 14.21 grams of the compound were dissolved in 241.3 grams of chloroform, the solution began to boil at 62.449 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound ? g/mol
1 A certain liquid X has a normal freezing point of 0.40 °C and a freezing point depression constant K = 5.78 °C·kg⋅mol A solution is prepared by dissolving some glycine (C₂HÃNO₂) in 850. g of X. This solution freezes at −5.2 °C. Calculate the mass of C₂H²NO₂ that was dissolved. Be sure your answer is rounded to the correct number of significiant digits. 1 g | x10 S