4 please answers withhAssume that all gases obey the Ideal Gas Law. Use separate paper.1A 20.0 L reactor is filled with air (20% oxygen, CO2 free), temperature recorded, 23.0°C. 1-Hexene(C6H12, 10.00 mL, d = 0.6685 g/mL, MW = 84.162 g/mol) was introduced and combusted. After thetemperature equilibrated the total pressure in the reactor was 1.784 atm. Assume ideal gas behavior.a) If an excess oxygen was present in the reactor what was the pressure of the air prior to theintroduction of the hydrocarbon? (hint: balance the equation)2. A pond has an oxygen content of 2.401 x 10 mole/L. What is the atmospheric pressure that day if thetemperature was 15°C and the humidity was 70%? Assume that the CO2 contribution is negligible.K for oxygen is 1.30 x 10*3 mol/L atm.3. A solution is prepared by dissolving 35.0 g of hemoglobin in enough water to make up 1.00 L involume. The osmotic pressure of the solution is found to be 10.0 mmHg at 25.0 °C. Calculate themolar mass of hemoglobin.4. a) What is the osmotic pressure of an aqueous solution at 25°C if its freezing point is - 2.1°C?Assume that M and m are equivalent. K; for water is 1.86 °C/mb) What mass of fructose (180.16 g/mol) would you need to dissolve in 500 mL of water to achievethat effect?c) What mass of NaCl (58.44 g/mole) would you need to dissolve in 500 mL of water to achievethat effect?

Using relationship between different colligative properties to concentration we can calculate the…

4. a) What is the osmotic pressure of an aqueous solution at 25°C if its freezing point is -2.1°C? Assume that M and m are equivalent. K, for water is 1.86 °C/m b) What mass of fructose (180.16 g/mol) would you need to dissolve in 500 mL of water to achieve that effect? c) What mass of NaCl (58.44 g/mole) would you need to dissolve in 500 mL of water to achieve that effect?

4. a) What is the osmotic pressure of an aqueous solution at 25°C if its freezing point is -2.1°C? Assume that M and m are equivalent. K, for water is 1.86 °C/m b) What mass of fructose (180.16 g/mol) would you need to dissolve in 500 mL of water to achieve that effect? c) What mass of NaCl (58.44 g/mole) would you need to dissolve in 500 mL of water to achieve that effect?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 92QRT

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