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Assuming that the solute consists entirely of NaCl (over 90% is), calculate the osmotic pressure of seawater at 20 degrees C
calculate the volume of 12.9 molar ethanol solution needed to prepare 2 L of 8.12 molar ethanol solution. (i did this by doing MV=MV and got 1.26 L)
When preparing 4-bromoaniline from 4-bromo-N-ethanoylbenzenamine, the hydrolysis mixture is rendered alkaline before the steam distillation. Why. It has something to do with acid/base reactions and volatilities of ionic compounds.
Choose the substance with the lowest vapor pressure at a given temperature. A) CO2 B) BeCl2 C) BF3 D) He E) PF5
imagine that as an employee of a pharmaceutical company you are working on an h-k-atpase. it is the enzyme that pumps
when power was turned off to a 30.0 gal. water heater the temperature of the water dropped from 75.0degc to 22.5degc.
Calculate the molar solubility of bismuth sulfide, Bi2S3 (Ksp = 1.6 x 10-72) in (a) pure water, and (b) 0.05 M cadmium sulfide, CdS
Usually as a solution cools, the solvent will crystallize out of the solution as the pure solvent. What effect will this have on concentration of the solute as solvent is solidifying.
The compound below is treated with chlorine in the presence of light. Draw the structure for the (organic) species produced by reaction of the compound with a chlorine atom. Assume reaction occurs at the weakest C-H bond.
Calcium Hydroxide is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.30 M Ca (OH)2 aq solution.
Cesium-131 is a short lived radioisotope (t1/2= 9.7 days) used to treat prostate cancer. How much theraputic strength does a Cesium-131 source lose over 60 days? Express your answer as a percent of the strength the source had at the begining of th..
A benzylic carbocation is generated under the conditions of part A. would the presence of a para CH3O- group on the benzene ring
Please tell for each individual solution which ions are expected to hydrolyze (if any) and what the spectator ions are
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