Solubility Definition and 244 Threads

I'm having some trouble understanding heterogenous equilibria. I read that solids, pure liquids and solvents are omitted from the equilibrium expression. Let's say I have some AgCl in a litre of water. The tiny amount of AgCl that dissociates and dissolved is given by its Ksp. I understand that...

Dear all, It is stated in a literature that: Solubility = [87 cm^3(STP) H20]/ [cm^3 polymer*atm] = 93,28 (g H20/cm^3 polymer)/ (g H20/cm^3 air) where the storage conditions is 28 degress celcius and 70% relative humidity, at 1 atm. My question, how do i convert from the first unit to...

Would you expect to that Aspirin and Ibprofen are more or less soluble in water than benzoic acid? ( I believe it has something to do with the polarity of the bonds but I am unsure how to choose between the two.)

Is there any method to find the solubility of a substance in solution... without boiling the water out of the solution? In other words, can you find the solubility of a substance in solution while somehow keeping it in solution (far less dangerous)?

In class, we've been working on predicting equations given particular chemicals, and later, actually testing some of them. I've been doing just fine, but I'm stuck on one of them-- 1. Homework Statement + attempted solutions I was given: AgNO3 + Na2SO4, and was told to predict what the...

thanks

I just want to make sure I have this right. I know the general solubility rules (i.e. nitrates are highly soluble, hydroxides aren't, etc.), but I'm not completely sure how to compare the solubilities of two salts of the same anion. I'm pretty sure that the salt with the more reactive ion...

Hey Everybody, Can anybody please give me a solubilty curve for Calcium Hydroxide.(I couldn't find one) I would be happy if anybody could provide me with one. Thanks very much:smile:

Homework Statement Show that, 'In p-block and d-block metals their carbonates,sulphides and hydroxides are insoluble" I understand that all carbonates are insoluble(except the alkali metal carbonates), also that all sulphides are insoluble,but it's the solubilty of hydroxides that I'm...

Homework Statement Calculate the solubility of silver chloride at 25℃. Ksp of silver chloride at 25℃=1.8x10^-10 Homework Equations AgCl⇔Ag+Cl (I believe) So, Ksp=[Ag][Cl] The Attempt at a Solution All I know is the Ksp of silver chloride at that temperature. I have no idea what to...

In organic chemistry, What causes a compound to be more soluble than others? What causes a compound to have a higher boiling point than others? I think the more molecular mass a compound has, the higher boiling point. However, methoxymethane and ethanol both have the same molecular mass...

Homework Statement The ksp values of AgCl and Ag2CrO4 are 2*10-10 mol2dm-6 and 3*10-12mol3dm-9 respectively.100cm3 of an aqueous solution contains NaCl and K2CrO4 only,whose cocentrations are 0.1M and 0.1M respectively.To this solution,is added AgNO3 dropwise while mixing. (1) Calculate...

I'm finding a lot of inconsistency with the solubility rules from different sources. especially when it comes to SO4(negative 2 charge). my teacher told me: soluble except when combined with Ca2+, Ba2+, Sr2+, Pb2+... however, other sources sometimes include Hg(II) 2+, and some Ag+, and...

Homework Statement Calculate the mass of nitrogen dissolved at room temperature in an 80.0L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of .78. Homework Equations Mole fraction= moles solute/moles solution Sgas=KH x Pgas KH = 6.1 x 10-4...

Homework Statement How many moles of solid sodium fluoride should be added to 1.0 L of a saturated solution of barium fluoride, BaF2, at 25OC to raise the fluoride concentration to 3.0 x 10-2 mol/L? The solubility product constant for BaF2 is Ksp = 1.7 x 10-6 at 25OC. The Attempt at a...

Hi Everyone! Hopefully someone can help me out with this question...Why is aniline soluble in aqueous hydrochloric acid, but acetanilide is not? Is it because aniline has a lone pair on the nitrogen that is more available to react? The lone pairs in acetanilide are too tied up with...

Homework Statement Does hexane dissolve in Crude oil? My attempt I know it dissolves in fats and to some oils. I am not sure whether it means crude oil too.

Homework Statement Hey all, I'm new here, so hello to all of you. Question: "Calculate the solubility of PbI2 in .300m AlI3 (PbI2 - Ksp = 2.0x10-30)" So I'm not really sure how to do the symbols and such, but that's a try. Now I'm seeing it two ways. One: Right a disassociation equation as...

Homework Statement Consider the following equilibria at T = 26 0C, in which all ions are aqueous: Ag+(aq) + Cl-(aq) ----> AgCl(aq) K1 = 2.0E2 AgCl(s) ----> Ag+(aq) + Cl-(aq) K2 = 1.9E-10 Consider the reaction AgCl(s) ----> AgCl(aq) and calculate the concentration of AgCl(aq) in...

Homework Statement Given solubility of Ba(NO3)2 is 34g/100 H20 at 100oC 5g/100g of H20 AT 0oC if one starts with 100g of (BaNO3)2 and make a saturated solution in water at 100oC, and then cooled to 0oC, how much Ba(NO3)2 is crystallised out of solution? The resultant crystals carry along...

Homework Statement A gas has a Henry's law constant of 0.150 M/atm. How much water would be needed to completely dissolve 1.49 L of the gas at a pressure of 720 torr and temp of 14 C.Homework Equations m = amount solute (in mol)/mass solvent(in kg) M = amount solute (in mol)/volume solution...

Homework Statement What is the molar solubility of Mg(OH)2 (Ksp1.8*10-11) in8.62*10-2M MgCl2 (aq)? Homework Equations Chemistry is awwweeesssommmmeee... The Attempt at a Solution Okay. Here goes. But mind you, I have not put my all into this course, so I will probably need...

Homework Statement Which solvent would be a better choice to dissolve each of the following? Tetracholride or Water a - thiamine hydrochloride b - CH3(CH2)16CO2H c - C6H12 d - CS2 e - NH3 f - (NH4)(CH3CO2) Homework Equations Draw the structure and find polarity Like...

I am interested, in particular, why GL_2(3) (or in other notation GL(2,3)) is soluble. Can anyone explain why or recommend a textbook with a pretty proof. Thank you sincerely.

Homework Statement Hello. I recently did a lab with my chemistry class in which we mixed Potassium Iodide and Lead(II) Nitrate of different dilutions. We started off with 10mL of each solution and mixed them, giving us a final volume of 20mL. We then gradually decreased each solution's volume...

in literature, find melting point and solubility in water of benzoic acid, vanillin, phthalic acid, salicyclic acids. Calculate the expected volume of hot water that would be requried to dissolve 0.15g of each compound. With info on melting point and solubility in water... how can you...

1. The Problem The Following Steps Occur in Order: a. Aqueous silver nitrate is added to a sodium bromide solution to form a white precipitate. b. Aqeuous ammonia is added to the above. The contents of the container change color slightly and there is still a precipitate. c. After step b...

The solubility-product constant for K2PdCl6 is 6.0 x 10^ -6 (K2PdCl6 ---> 2K+ + PdCl6 2-). What is the K+ concentration of a solution prepared by mixing 50.0 mL of 0.200 M KCl with 50.0 mL of 0.100M PdCl6(2-)? My Approach (thus far): 1) get mmol of KCl and PdCl6(2-) and get difference of...

is glucose soluble in diethyl ether? my guess is that glucose is not soluble in ethers, but I don't know why, can somebody explain this to me please? thanks

Does p-toluidine hydrochloride dissolve in water, HCl, NaOH, or NaHCO3? How would you write the chemical equations of the reactions?? if a salt is formed... how do you write that in an equation showing the structural formulas?? If it dissolves in water, if you add drops of HCl or NaOH to the...

Homework Statement I did an experiment where an extraction was done with an unknown carboxylic sample. Some mass of it was mixed with ether and aqueous NaOH then aqueous layer extracted, etc. The question asks though, why is the unknown compound soluble in aq. base not acid. Also, describe a...

I think oil will be less soluble in water in high temperature. Oil is not soluble in water because it is not favoured by entropy change, so we cannot make oil soluble just by changing temperature. Rather increasing temperature would remove energy barrier and decrease solublity. [Energy...

Homework Statement The solubility of a gas in water decreases as temperature increases, and increases as temperature decreases. Using the kinetic molecular theory, explain why this is so. I would like an opinion please on my answer below. Is it a sufficient explanation? THANKS! :smile...

Hello, I was wondering if someone could help me understand how insoluble lead (II) chloride dissolves in hot water. I know it's probably dependant on temperature, (increase in temperature = increase in solubility) but is it affected by the chemical structure of the compound as well?

[SOLVED] Water solubility of benzoic acid Homework Statement At 25^{0}C a saturated solution of benzoic acid with K_{a}=6.4 x 10^{-5} (can't get this thing to display a simple multiplication sign in the equation) has a pH = 2.80. Calculate the water solubility of benzoic acid in moles per...

[SOLVED] Solubility Thallous Chloride Homework Statement 6.5g of thallous chloride is added to 750ml of water at room temperature to determine Ksp. The solution is stirred from time to time over a 4h period. Some thallous chloride does not dissolve and the solution is declared saturated. A...

Homework Statement Which of the substances below is least soluable in water? A. CH2OHCHOHCH2OH B. CH3COCH3 C. CH3CH2COOH D. CH3COOCH3 Homework Equations The Attempt at a Solution I think bith B and C are not possible since B can dissolve in water easily and C is acid...

In my lab, I'm trying to identify an unknown compound. So I did a solubility test of the unknown into 5% NaOH. According to the manual it said that if it appears insoluble,take the supernatant out and add 5% HCl until neutral. If percipitate or turbidity results, it means the unknown is an acid...

Hi everybody. I'm stuck half way through this problem. If anybody could help it's greatly appreciated. This may be a long post... Homework Statement Automobile parts are plated with chromium to resist corrosion and produce a shiny product. Wastewater from a chromium plating company...

i have 5 test tubes with benzoic acid, and i pour NH4OH, NaOH, HCl, NaHCO3 and diethyl ether into different tubes. The first 3 dissolved completely but the last 2 did not. Any ideas why? i don't believe "like dissolves like" applies here since they are all polar.

Hi I'm not too familiar with why certain compounds tend to disassociate completely/partially in the water solvent. In one experiment from lab I remembered that HCL dissolved completely whereas CH3COOH (acetic acid) only partially dissolved. Weak acids generally don't hydrolyze completely...

[SOLVED] equilibirum and solubility product I need some help with this question, if there are any chemistry whizzes around id really appreciate it: Calculate the solubility of AgCl (in grams of AgCl/ L of solution) in an HCl solution having pH of 2.30. Ksp of silver chloride = 1.7 x 10^-10.

Would sodium benzoate react (dissolve) when added to water and HCl, or to water and NaOH? Also, how would you write the chemical equations for the reactions?

So I'm studying solubility rules and such in chemistry and everything is fine and dandy except when the solution is something other than water. Here's 2 examples that my teacher gave us that I have no idea how to do: BaCO3, BaSO3 and BaSO4 are all slightly soluble in water. The first 2...

I don't know why i am getting this wrong Question : Rank the following five salts in order of decreasing solubility, in terms of mass per unit volume. (The most soluble gets rank 1, the least soluble gets rank 5.) PbCl2 (ksp=1.60E-5) Ca5(PO4)3OH (ksp=6.80E-37) Ag3PO4 (ksp=1.80E-18)...

The question is: Calculate the solubility, in g/100mL, of Ca5(PO4)3OH. when it asks for solubility, is that the same as asking for the Ksp of Ca5(PO4)3OH?? so basically, i have to find the concentration of Ca2+, PO4^3- and OH- and then find the Ksp ? BUT, i thought Ksp have no...

The pka of p-nitrophenol is 7.15 while 2,5 dinitrophenol pka is 5.15. Would you expected these two compounds to dissolve in sodium bicarbonate solution. pKA of carbonic acid is 6.37. Basically, i believe that p-nitrophenol will dissolve in the sodium bicarbonate solution because the sodium...

Homework Statement What is the solubility (gram/liter) of Cr(OH)3 (103.02 g/mol) in a solution buffered at pH = 8.673? The pKsp of Cr(OH)3 is 30.220. Homework Equations Ksp = [Cr][OH]^3 Cr(OH)3 -> Cr + 3OH The Attempt at a Solution I have already solved that Ksp = 6.0256 E -31...

Can someone please explain to me: 1) How to determine an eqilibirium constant 2) How to calculate Ksp from solubility values 3) How to determine if a precipitate will form in a reaction I am doing a chemistry course without a teacher and the textbook doesn't properly explain it...

Hello, How would I go about finding the air solubility coefficient of a kerosene based aircraft fuel? I know that as a rule of thumb, air pressure is close to percent dissolved air, eg. at atmosphere, 15 psi gives around 15% dissolved air, but how would I calculate the coefficient accurately?