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Topic: Solubility equilibrium

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	Solubility equilibrium - Wikipedia, the free encyclopedia
		Solubility equilibrium is any chemical equilibrium between solid and dissolved states of a compound at saturation.
		Solubility is sometimes listed in mass units such as grams dissolved per liter of water.
		Solubility (and equilibrium) constants themselves are dimensionless (however, they may have units).
	en.wikipedia.org /wiki/Solubility_equilibrium (684 words)

	solprod.htm
		The solubility of a substance is dependent on the forces holding the crystal together (the lattice energy) and the solvent acting on these forces.
		Suppose a salt of low solubility is found in the presence of a soluble salt in which the cation or anion of the soluble salt is common to the cation or anion of the insoluble salt.
		For equilibrium to become established, a 3x amount of calcium ion is formed and an additional 2x amount of phosphate ion from the dissociation of calcium phosphate is introduced.
	www.towson.edu /~ladon/solprod.html (1506 words)

	Blank
		However, the precipitate is silver chloride, a slightly soluble strong electrolyte, and the solubilty decrease is due to the presence of chloride ion and not a consequence of the increased hydronium ion concentration.
		The solubility value near A would be the intrinsic solubility of the diprotic weak acid and region AB corresponds to the profile expected for a weak acid as pH increases.
		Point B is the maximum solubility observed for the equilibrium that involves the acid and monobasic salt, where the concentrations in equation 30 are at a maximum.
	www.pharmacy.umaryland.edu /faculty/ghollenb/pd3mod2/background.htm (2452 words)

	Content File (Site not responding. Last check: 2007-10-08)
		The equilibrium constant of this kind of equilibrium is simply the ratio of the solubility of the solute in one solvent divided by the solubility in the second solvent.
		Equilibrium occurs when the reversible reactions [local] are occuring at the same rate, i.e., the forward reaction forms products at the same rate that the reverse rate reforms reactants.When reactions are kept under closed conditions, and the reaction is reversible, chemical equilibrium can occur.
		A chemical equilibrium [local] between the degree of oxygen saturation and the amount of oxygen in the air [local] is expressed in the amount of oxygenated and deoxygenated hemoglobin in the blood.
	dwb.unl.edu /Teacher/NSF/C14/C14Content.html (6860 words)

	Equilibrium: Solubility
		Solubility equilibrium is base on the assumption that solids dissolve in water to give the basic particles from which they are formed.
		The equilibrium reaction for the dissociation of AgCl is:
		The equilibrium reaction for the dissociation of this salt is:
	www.chem.tamu.edu /class/majors/tutorialnotefiles/ksp.htm (1134 words)

	Solubility - Psychology Central (Site not responding. Last check: 2007-10-08)
		The solubility of one substance dissolving in another is determined by the intermolecular forces between the solvent and solute, temperature, the entropy change that accompanies the solvation, the presence and amount of other substances, and sometimes pressure or partial pressure of a solute gas.
		Solubility constants are used to describe saturated solutions of ionic compounds of relatively low solubility.
		The solubility constant is a special case of an equilibrium constant.
	psychcentral.com /psypsych/Solubility (491 words)

	Solubility Factors
		And considering that most solutes that are soluble in a liquid solvent are (usually) not soluble in the solid phase of the solvent.
		In addition, what is meant by "solubility?" The usual definition is that solubility is the concentration of a solvent when the solution is saturated, i.e., when the dissolving of a solvent and its recrystallization are in equilibrium.
		This implies the existence of an equilibrium constant, and those are functions of temperature and not pressure (which is something we learn how to prove in physical chemistry and other thermodynamics courses).
	www.newton.dep.anl.gov /askasci/chem00/chem00990.htm (1135 words)

	CHEM 2114 - Week 9
		The solubility is equal to [Ca ], but because of the competing equilibrium, it is not equal to [CO The solubility is equal to the total carbonate concentration.
		This solubility is approximately 2 orders of magnitude greater than it would be in the absence of the competing equilibrium.
		Similarly, solubility involves displacement of solvent molecules from the immediate surroundings of an ion in solution with other ions, resulting in formation of a precipitate.
	www.chem.vt.edu /chem-dept/tissue/2114/notes/2114-week09.html (2095 words)

	Chemistry International
		One of the major functions of the IUPAC Subcommittee on Solubility and Equilibrium Data (formerly IUPAC Commission V.8) is to publish authoritative texts on all aspects of solubilities.
		Absorption with suitable solvents provides a convenient method for the removal of CO In enhanced oil recovery, carbon dioxide is used to displace the hydrocarbons from the reservoir and the solubility of CO in the hydrocarbons is important to ensure that miscibility occurs, with a concomitant increase in the oil recovered.
		The availability of accurate and reliable information on the equilibrium solubility of CO in absorbing solvents as a function of temperature and pressure is of utmost importance in the rational design of gas-treating units.
	www.iupac.org /publications/ci/2002/2406/projects_502.html (952 words)

	Chapter 17, Section 4 (Site not responding. Last check: 2007-10-08)
		Therefore, the equilibrium expression for the dissolving of a slightly soluble ionic solid depends only on the molar concentrations of the species in solution.
		The molar solubility is the number of moles of the solute that dissolve in forming a liter of saturated solution of the solute (mol/L).
		The values of equilibrium constants are somewhat altered when the total concentration of ionic substances in water is increased.
	cwx.prenhall.com /bookbind/pubbooks/blb/chapter17/medialib/blb1704.html (1052 words)

	CHEM 102 Instructional Objectives
		COO, which supplies CH COO¯ ions, the solubility equilibrium of the solution will be shifted to remove more CH COO¯ from the solution, so that at the new equilibrium point there will be fewer CH ions in solution and more undissociated CH COOH in the solution.
		Solubility of a solute in a solvent is the number of grams of solute necessary to saturate 100 grams of solvent at a particular temperature.
		In other words, When a saturated solution of sparingly or slightly soluble salt is in contact with un- dissolved salt, an equilibrium is established between the dissolved ions and the ions in the solid phase of the un-dissolved salt.
	www.chem.latech.edu /~upali/chem102/102MSJc17.htm (3422 words)

	Solubility Equilibrium (Site not responding. Last check: 2007-10-08)
		When memorizing the solubility rules, you learned that several inorganic compounds were insoluble in water.
		Using the knowledge learned in General Equilibrium, you can right an equilibrium constant expression for sparingly soluble compounds.
		Solubility problems are solved very similar to the equilibrium problems.
	www.cofc.edu /genchemlab/solubility.htm (272 words)

	THERMAL EFFECTS OF MAGMA DEGASSING
		Along with the known solubility law (necessary for equilibrium degassing) it is possible to calculate the thermal effects (cooling) on albite melt of decompressive degassing.
		Equilibrium degassing involves volatile exsolution along the solubility curve such that the gas is in equilibrium with the melt at all times during decompression.
		The dissolved mass fraction is determined by the solubility curve of the volatile in the melt.
	gaim.sr.unh.edu /csrc/gif/bubbles/Therm/Therm.html (7108 words)

	Solubility, saturation, equilibrium in saturated solutions, supersaturated solutions
		The conventional reference for solubility is the number of grams of solute that can dissolve in 100 mL of solvent.
		Sometimes the solubility is in grams of solute per 100 grams of solvent.
		C the solubility will eventually be decreased to 34 gram KCl.
	www.800mainstreet.com /9/0009-004-solub.html (332 words)

	SYLLABUS FOR CHEMISTRY 102 (Site not responding. Last check: 2007-10-08)
		The general objectives of the course are: (1) to introduce the basic ideas and concepts of selected topics in chemistry; (2) to provide a firm foundation for upper level courses in which chemistry 102 is a prerequisite; and (3) to serve the needs of students taking chemistry primarily for their general cultural backgrounds.
		Specifically, students should: (1) develop an appreciation for chemistry and the relevance of chemistry to every day processes; (2) be able to understand solubility rules, concentration units, colligative properties, and the preparation of various types of solutions; (3) know general concepts of the theory of acids and bases, their properties and their reactions.
		Calculate the concentration of a metal in equilibrium with a ligand with which it forms a soluble complex ion, from a knowledge of initial concentrations and Kf.
	jewel.morgan.edu /~ghaynes/syl102.htm (2682 words)

	WOW \| Curricula \| Teacher \| The Chemistry of Oxygen Solubility
		Henry's Law describes the effect of pressure on the solubility of a gas in a liquid.
		By definition, at equilibrium, the number of gas molecules entering and leaving the solution is balanced and the concentration of the gas in solution remains constant.
		At equilibrium, as many molecules come out of solution as dissolve in a given time period.
	waterontheweb.org /curricula/bs/teacher/oxygen/teaching.html (1739 words)

	Chem 153 Chapter 20
		Calculate the value of Ksp form solubility data: 8a, b; 9c, d, 10 (use data from 8a, 8b, 8c); 12.
		Given a slightly soluble salt, its Ksp and a solution containing a known concentration of the common ion, calculate the salt's molar solubility.
		for the complex-ion and the insoluble salt, respectively, calculate the solubility of the slightly soluble ionic compound.
	www.cod.edu /people/faculty/fullerd/ChapHTM/Chem3chapters/Chapter20.html (574 words)

	Chapter 17, Section 5 (Site not responding. Last check: 2007-10-08)
		The solubility of a substance is affected not only by temperature but also by the presence of other solutes.
		In this section we examine three factors that affect the solubility of ionic compounds: the presence of common ions, the pH of the solution, and the presence of complexing agents.
		In general, the solubility of a slightly soluble salt is decreased by the presence of a second solute that furnishes a common ion.
	cwx.prenhall.com /bookbind/pubbooks/blb/chapter17/medialib/blb1705.html (1805 words)

	CHP - Solubility
		Solubility is defined as moles/L, g/L, or mg/L of the dissolving species.
		M. The solubility of barium iodate is much less when one of the ions involved in the equilibrium is present in solution.
		The competing equilibrium for carbonate increases the calcium carbonate solubility by a factor of approximately 2 (LeChatelier strikes again).
	www.chemistry.vt.edu /chem-ed/equilibr/solubility.html (1128 words)

	Chemical Sciences. Solubility of Ionic Solids in Water
		The solubility of an ionic salt depends both upon its cations and its anions, but for simple salts in aqueous solution at room temperature the following general observations are useful.
		Metal carbonates and phosphates are generally insoluble or slightly soluble, with the exception of those of sodium, potassium, and ammonium which are highly soluble; magnesium ammonium phosphate is used for the precipitation of magnesium ion.
		The solubility of solid salts in water, and in most other solvents, increases with temperature while the solubility of gases decreases.
	www.ualberta.ca /~jplambec/che/p101/p01183.htm (654 words)

	Body
		Waiting for solubility equilibrium to be reached would otherwise cost us a few hours.
		The solubility of oxygen in water is essential for all forms of aquatic life.
		The solubility is not very high and it can be difficult to measure.
	www.bgsu.edu /departments/chem/faculty/endres/ch128/equilibrium.htm (2629 words)

	NRC: Solubility and Leaching of Radionuclides in Site Decommissioning Management Plan (SDMP) Slags (NUREG/CR-6632)
		U-238 daughters were in secular equilibrium in certain highly solidified non-porous samples but escape of Rn-222 had occurred from more porous samples perturbing the U-238 secular equilibrium.
		Uranium also appears to be solubility controlled in certain waste samples (thoriated slags) high in pH and alkaline earth cations (Ca, Sr, Ba), upper limits on the observed solubilities apparently being set by the secondary formation of alkaline earth uranates.
		Statistical analysis of the batch, column, and solubility data showed that the uncertainties in the dissolved Th and U concentrations can be described using a lognormal distribution with a meanlog of –17.7 and a sdlog of 0.57 for U and a meanlog of –19.5 and an sdlog of 1.7 for Th.
	www.nrc.gov /reading-rm/doc-collections/nuregs/contract/cr6632 (464 words)

	FactSol (Site not responding. Last check: 2007-10-08)
		The solubility of a partially soluble salt is reduced by the presence of a second solute that provides a common ion
		The equilibrium equation for the formation of the complex ion of Ag aq) with NH aq) is:
		The presence of NH (aq), and the formation of the complex ion with Ag (aq), significantly reduces the equilibrium concentration of Ag (aq) ion, and thus drives the dissolution of AgNO
	wine1.sb.fsu.edu /chm1046/notes/AddAqEq/FactSol/FactSol.htm (922 words)

	Ionic Equilibria (Site not responding. Last check: 2007-10-08)
		The second kind of solubility problem is to be given K and asked to find the equilibrium concentrations.
		The initial and equilibrium amounts are shown to the right for addition of solid calcium carbonate to a sodium carbonate solution.
		The equilibrium concentration of free ammonia was 0.10M.
	home.att.net /~v.d.singleton/genchem/ionequil.htm (3368 words)

	Wiley::Ionic Equilibrium: Solubility and pH Calculations
		The first part of Ionic Equilibrium is devoted to the fundamentals of acid-base, solubility, and complex formation equilibria.
		In the second part, the author discusses oxidation-reduction equilibria, develops the principles of carbon dioxide equilibria, presents case studies demonstrating the ways in which carbon dioxide equilibria are used in physiology and oceanography, and explores the possibility of a pH scale for brines.
		Replete with real-world examples, details of important calculations, and practical problems, Ionic Equilibrium is an ideal course text for students of environmental chemistry, engineering, or health; analytical chemistry; oceanography; geochemistry; biochemistry; physical chemistry; and clinical chemistry.
	www.wiley.com /WileyCDA/WileyTitle/productCd-0471585262,descCd-description.html?print=true (346 words)

	Solubility Equilibria (Site not responding. Last check: 2007-10-08)
		The solubility equilibrium we are concerned with is therefore:
		Of course, we expect a decrease in solubility according to Le Chatelier’s principle, where a common ion will shift the equilibrium to left (reactants side).
		Look at how the solubility is decreased in presence of the common ion.
	www.iugaza.edu /users/Abdellatif/CHEMB1301/Lectures_21-End/L34.htm (464 words)

	Search results for 'equilibrium'
		* Understand the concept of equilibrium solubility * and use it to recognize saturated * and supersaturated * solutions.
		The equilibrium constant for the dissociation of an acid into a hydrogen ion and an anion.
		Phases are depicted as regions on the map; the borderlines between regions correspond to conditions where the phases can coexist in equilibrium *.
	marie.frostburg.edu /cgi-bin/htsearch?config=htdig&restrict=101&exclude=print-&method=and&format=builtin-long&sort=score&words=equilibrium (415 words)

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