Multiple Choice
A 2.2-g sample of a small protein having a molecular weight of 42,000 g/mol is dissolved in 31.2 mL of water at 28°C.What is the osmotic pressure of the solution? (R = 0.0821 L · atm/(K · mol) )
A) 32 mmHg
B) 1300 mmHg
C) 2.9 mmHg
D) 18,000 mmHg
E) 0.041 mmHg
Correct Answer:

Verified
Correct Answer:
Verified
Q24: The volume of a 24.0% (by mass)solution
Q25: Which way of expressing concentration is used
Q26: What mass of a 29.0% by mass
Q27: What is the molality of ethanol,C<sub>2</sub>H<sub>5</sub>OH,in an
Q28: Thyroxine,an important hormone that controls the rate
Q30: Based on the formulas of the following
Q31: As the number of solute particles in
Q32: What is the mass percent of ethylene
Q33: According to _,the partial pressure of solvent,,over
Q34: What is the mass of H<sub>2</sub>SO<sub>4</sub> in