200 mL of an aqueous solution of a protein contains 1.26 g . The osmotic pressure at 300 K is 2.57 × 10^-3 bar . The molar mass of protein is ( R = 0. - Chemistry MCQ Chemistry | ExamTest.live

mediumMCQChemistryChemistry

1 mark

200 mL of an aqueous solution of a protein contains 1.26 g . The osmotic pressure at 300 K is 2.57 \times 1 0^{- 3} bar . The molar mass of protein is (R = 0.083 L bar mol^{- 1} K^{- 1}):

A $31011 g mol^{- 1}$
B $61038 g mol^{- 1}$
C $51022 g mol^{- 1}$
D $122044 g mol^{- 1}$

Solution & Step-by-step Explanation

π = CRT = \frac{w}{M \times V} RT M = \frac{wRT}{πV} = \frac{1.26 \times 0.083 \times 300}{2.57 \times 1 0 ^{- 3} \times 0.2} M = \frac{31.374}{0.000514} \approx 61038.9 g/mol .

Practice this question

Try it yourself before checking the explanation above.

200 mL of an aqueous solution of a protein contains 1.26 g . The osmotic pressure at 300 K is 2.57 \times 1 0^{- 3} bar . The molar mass of protein is (R = 0.083 L bar mol^{- 1} K^{- 1}):

31011 g mol^{- 1}

61038 g mol^{- 1}

51022 g mol^{- 1}

122044 g mol^{- 1}

Share This Question

Solutions Osmotic Pressure

Related Questions

mediumMCQ

Which of the following statements are true?A. Unlike Ga that has a very high melting point, Cs has a very low melting point.B. On Pauling scale, the electronegativity values of N and Cl are not the same.C. Ar, K^+, Cl^-, Ca^2+ , and S^2- are all isoelectronic species.D. The correct order of the first ionization enthalpies of Na, Mg, Al, and Si is Si > Al > Mg > Na.E. The atomic radius of Cs is greater than that of Li and Rb.Choose the correct answer from the options given below:

mediumMCQ

Match List I with List IIList I (Ion)A. Co^2+ B. Mg^2+ C. Pb^2+ D. Al^3+ List II (Group Number in Cation Analysis)I. Group-III. Group-IIIIII. Group-IVIV. Group-VIChoose the correct answer from the options given below:

hardMCQ

Predict the major product 'P' in the following sequence of reactions:

hardMCQ

Which of the following are paramagnetic?A. [NiCl_4]^2- B. Ni(CO)_4 C. [Ni(CN)_4]^2- D. [Ni(H_2O)_6]^2+ E. Ni(PPh_3)_4 Choose the correct answer from the options given below:

mediumMCQ

Given below are two statements:Statement I: Like nitrogen that can form ammonia, arsenic can form arsine.Statement II: Antimony cannot form antimony pentoxide.In the light of the above statements, choose the most appropriate answer from the options given below:

mediumMCQ

Which among the following electronic configurations belong to main group elements? A. [Ne] 3s^1 B. [Ar] 3d^3 4s^2 C. [Kr] 4d^10 5s^2 5p^5 D. [Ar] 3d^10 4s^1 E. [Rn] 5f^0 6d^2 7s^2

Ready for a Full Test?

Practice with timed mock tests and track your performance across Chemistry.

Browse Tests Leaderboard

$200 mL$ of an aqueous solution of a protein contains $1.26 g$ . The osmotic pressure at $300 K$ is $2.57 \times 1 0^{- 3} bar$ . The molar mass of protein is ( $R = 0.083 L bar mol^{- 1} K^{- 1}$ ):

Solution & Step-by-step Explanation

Practice this question

Share This Question

Related Questions

Ready for a Full Test?

Discussion

200mL of an aqueous solution of a protein contains 1.26g. The osmotic pressure at 300K is 2.57×10−3bar. The molar mass of protein is (R=0.083Lbarmol−1K−1):

Solution & Step-by-step Explanation

Practice this question

Share This Question

Related Questions

Ready for a Full Test?

Discussion

$200 mL$ of an aqueous solution of a protein contains $1.26 g$ . The osmotic pressure at $300 K$ is $2.57 \times 1 0^{- 3} bar$ . The molar mass of protein is ( $R = 0.083 L bar mol^{- 1} K^{- 1}$ ):