7th Edition

ISBN: 9781305866966

Author: STOKER

Publisher: CENGAGE L

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Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to a…

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Textbook Question

Chapter 8, Problem 8.5EP

For each of the following pairs of solutions, select the solution for which solute solubility is greatest.

a. Ammonia gas in water with P = 1 atm and T = 50°C
Ammonia gas in water with P = 1 atm and T = 90°C
b. Carbon dioxide gas in water with P = 2 atm and T = 50°C
Carbon dioxide gas in water with P = 1 atm and T = 50°C
c. Table salt in water with P = 1 atm and T = 60°C
Table salt in water with P = 1 atm and T = 50°C
d. Table sugar in water with P = 2 atm and T = 40°C
Table sugar in water with P = 1 atm and T = 70°C

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Chapter 8, Problem 8.4EP

Chapter 8, Problem 8.6EP

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When 2.43 g of a nonelectrolyte solute is dissolved in water to make 435 mL of solution at 25 °C, the solution exerts an osmotic pressure of 895 torr. What is the molar concentration of the solution? concentration: 0.045 M Incorrect How many moles of solute are in the solution? moles of solute: 0.034 mol Incorrect What is the molar mass of the solute? molar mass: 69.12 g/mol Incorrect

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The simple form of |Hoff equation is: II = [B]RT In this equation the [B] is the molar concentration of solute. So: n m [B] = v MV = cg /MA Where c, the mass concentration of the solute is in the total volume of solution and M, is the molar mass of the solute. This equation can be replaced in the previous one to get: RT II = MA In this equation molar mass of given solute can be detemined from the slope of the II vs Cz plot. This equation applies only to solutions that are sufficiently dilute to behave as ideal-dilute solutions. In the case of non-ideal solutions, however, the extended formula is: II = [B]RT{1+ k. [B] + n. [B]² + ...} Biological macromolecules dissolve to produce solutions that are far from ideal, but we can still calculate the osmotic pressure by assuming that the van't Hoff equation is only the first term of a lengthier expression: II [B]RT(1+ b. [B]) II = RT + bRT. [B] [B] II = RT + bRT./M. */Ma п RT ÞRT Ca MA MA In this equation molar mass of given biomolecule can…

Chapter 8 Solutions

GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP

Ch. 8.1 - In a solution containing 15 mL of water and 25 mL...Ch. 8.1 - Prob. 2QQ Ch. 8.1 - Which of the following statements about solutions...Ch. 8.2 - Which of the following statements concerning a...Ch. 8.2 - Prob. 2QQ Ch. 8.2 - Prob. 3QQ Ch. 8.3 - When an ionic solute dissolves in water, the water...Ch. 8.3 - Which of the following does not affect the rate at...Ch. 8.3 - Prob. 3QQ Ch. 8.4 - The word like in the solubility rule like...

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