Northern cod produce proteins that protect their cells from damage caused by subzero temperatures. Measurements of the o

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Northern cod produce proteins that protect their cells from damage caused by subzero temperatures. Measurements of the osmotic pressure for two "antifreeze" proteins at 18°C yielded the data listed below. Use this information to calculate the molar mass for each of the proteins. Assume these proteins are nonelectrolytes and use the value / 1. 3rd attempt Part 1 (1 point) If a 49.9 mg sample of protein A in 1.5 mL of water has an osmotic pressure of 0.277 atm, what is the molar mass of protein A? g/mol See Periodic Table Part 2 (1 point) If a 45.5 mg sample of protein B in 1.75 ml of water has an osmotic pressure of 0.218 atm, what is the molar mass of protein B? zimol A
A solution is prepared by diluting 105.0 mL of a physiological saline solution (0.920% NaCl by weight) with 250.0 mL of water. N 13 5th attempt Feedback See Periodic Table What is the osmotic pressure of the final solution at 37.0°C? Assume that NaCl dissociates completely into Na" and Cl. Assume the density of the solution is the same as the density of water. 2.8 atm 4th attempt
See page 510 Northern cod produce proteins that protect their cells from damage caused by subzero temperatures. Measurements of the osmotic pressure for two "antifreeze" proteins at 18°C yielded the data listed below. Use this information to calculate the molar mass for each of the proteins. Assume these proteins are nonelectrolytes and use the value /- 1. 3rd attempt Part 1 (1 point) See Periodic Table If a 49.9 mg sample of protein A in 1.5 mL of water has an osmotic pressure of 0.277 atm, what is the molar mass of protein A? g/mol Part 2 (1 point) If a 45.5 mg sample of protein B in 1.75 ml of water has an osmotic pressure of 0.218 atm, what is the molar mass of protein B? 2918 g/mol
Ethanol 1st attempt Part 1 (1 point). What is the molecular formula for these compounds? (The formula is the same for both) XX→ 8. Dimethyl ether Part 2 (1 point) What intermolecular forces exist between molecules of ethanol? Choose one or more: A lon-dipole B. Dipole-induced dipole C Dispersion D. Dipole-dipole E Hydrogen bonding See Periodic Table
What intermolecular forces exist between molecules of dimethyl ether? Choose one or more: A Dipole-induced DB. Hydrogen bonding C. lon-dipole D. Dispersion E. Dipole-dipole Part 4 (1 point) One of these compounds is a liquid at room temperature, and the other is a gas. Which compound is more likely to be a liquid and why? Choose one: A Ethanol is a liquid at room temperature because it has weaker intermolecular forces B. Ethanol is a liquid at room temperature because it has stronger intermolecular forces 9C Dimethyl ether is a liquid at room temperature because it has weaker intermolecular forces D. Dimethyl ether is a liquid at room temperature because it has stronger intermolecular forces.