For each of the following questions, more than 1 answer may be correct: 1. Molecular adsorption a. Describes the adsorption of gases on the surface of a solid b. Is used in the separation of substances c. Describes the preferential adsorption of substances with positively or negatively charged function groups d. Has utility in the production of purified water in pharmacy 2. Mechanism of action of polar solvents (water) includes a. Dissolving with similar internal pressures through induced dipole interactions b. Breaking covalent bonds and ionized weak electrolyte c. Formation hydrogen bridges with non-electrolytes d. Reduction the attraction between the ions of strong and weak electrolytes.

Calculate the total pressure in a binary system where the mole fraction of A in the vaporphase is 0.200, the vapor pressure of pure A is 100. mmHg and the vapor pressure ofpure B is 300. mmHg.

12. Explain how concentrations gradients affect diffusion and list the factors that affect diffusion rates.

Solubility of solids in liquids. In the assignment, you need to elaborate   the following points: world limit.(1000-1200) * Effect of Temperature. * Modification of molecular structure. * pH. * Common ion effect.

A common error is that student expect the nitrate ion to be non-polar. If thatwere the case which solvent would it be expected to be more soluble in carbon tetrachloride or dicholormethane. Briefly explain your reasoning.

ng and lear X O water treatment systems - Forkly X akeAssignment/takeCovalentActivity.do?locator=assignment-take [Review Topica] [References] Use the References to access important values if needed for this question. The common laboratory solvent diethyl ether (ether) is often used to purify substances dissolved in it. The vapor pressure of diethyl ether , CH3CH,0CH,CH3, is 463.57 mm Hg at 25 °C. In a laboratory experiment, students synthesized a new compound and found that when 5.823 grams of the compound were dissolved in 156.3 grams of diethyl ether, the vapor pressure of the solution was 456.57 mm Hg. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight of this compound? diethyl ether =CH,CH,OCH,CH3= 74.12 g/mol. MW g/mol Submit Answer Retry Entire Group 9 more group attempts remaining ed 8:43 PM 11/17/202 Q