claSSMateDatePage.Anawer each in 5-6 sendences-G- Compare tho puroperties of dolid and Siapuidee suchas Salt and oicl mixing in water.Ang

The properties of solid (Salt) and liquid (water).

Answered: Date Page Anouer each in 5-6 sentonces-…

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter6: Solutions And Colloids

Section: Chapter Questions

Problem 6.65P

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Silver ions can be found in some of the city water piped into homes. The average concentration of silver ions in city water is 0.028 ppm. (a) How many milligrams of silver ions would you ingest daily if you drank eight glasses (eight oz/glass) of city water daily? (b) How many liters of city water are required to recover 1.00 g of silver chemically?
An aqueous solution of LiX is prepared by dissolving 3.58 g of the electrolyte in 283 mL of H2O(d=1.00g/mL). The solution freezes at -1.81C. What is X-? (Assume complete dissociation of LiX to Li+ and X-.
When KNO3 is dissolved in water, the resulting solution is significantly colder than the water was originally. (a) Is the dissolution of KNO3 an endothermic or an exothermic process? (b) What conclusions can you draw about the intermolecular attractions involved in the process? (c) Is the resulting solution an ideal solution?
The mercury content of a stream was believed to be above the minimum considered safe —1 part per billion (ppb) by weight. An analysis indicated that the concentration was 0.68 parts per billion. What quantity of mercury in grams was present in 15.0 L of the water, the density of which is 0.998 g/ml? ( 1ppbHg=1ngHg1gwater)
Solutions of hydrogen in palladium may be formed by exposing Pd metal to H2 gas. The concentration of hydrogen in the palladium depends on the pressure of H2 gas applied, but in a more complex fashion than can be described by Henry's law. Under certain conditions, 0.94 g of hydrogen gas is dissolved in 215 g of palladium metal (solution density = 10.8 g cm3). (a) Determine the molarity of this solution. (b) Determine the molality of this solution. (c) Determine the percent by mass of hydrogen atoms in this solution.
Public Health Service standards for drinking water set a maximum of 250 mg/L (2.620103M) of SO42- because of its cathartic action (it is a laxative). Does natural water [hat is saturated with CaSO4 (gyp" water) as a result or passing through soil containing gypsum, CaSO42H2O, meet these standards? What is the concentration of SO42- in such water?
6-53 Dioxin is considered to be poisonous in concentrations above 2 ppb. If a lake containing L has been contaminated by 0.1 g of dioxin, did the concentration reach a dangerous level?
A commercial mercury vapor analyzer can detect in air, concentrations of gaseous Hg atoms (which are poisonous) as low as 2106 mg/L of air. At this concentration, what is the partial pressure of gaseous mercury if the atmospheric pressure is 733 tort at 26 C?
A salt is known to be an alkali metal fluoride. A quick approximate determination of freezing point indicates that 4 g of the salt dissolved in 100 g of water produces a solution that freezes at about -1.4 C. What is the formula of the salt? Show your calculations.
The Henry's law constant for CO2 is 3.4102 M/atm at 25 C. What pressure of carbon dioxide is needed to maintain a CO2 concentration of 0.10 M in a can of lemon-lime soda?
Supersaturated solutions of most solids in water are prepared by cooling saturated solutions. Supersaturated solutions of most gases in water are prepared by heating saturated solutions. Explain the reasons for the difference in the two procedures.
6-38 Describe how we would prepare 250 mL of 0.10 M NaOH from solid NaOH and water.

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Date Page Anouer each in 5-6 sentonces- G-l Compare tho buropenties of dolid and ligjuidee sech as Salt and oicl mixing in waer. Ana