Solubility Definition and 235 Threads

What is the solubility of Mg(OH)2 in a 0.55mol/L solution of KOH if the Ksp of Mg(OH)2 is 9.0x10-12? I figured out that the initial concentration of OH- in the solution is 0.55mol/L. I did an ICE table for Mg(OH)2 and (assume x represents an unknown concentration) found that the concentration...

I have a large exam tomorrow in chemistry and know how to do most problems on my practice test except these two If the solubility of sodium sulfite (Na2SO3) is 27(g/100g water) at 20 degrees celcius, what is the mass percent concentration of the saturated solution of Na2SO3 at 20 degrees...

Hello! Two questions that I would like to get some help with. I'm translating these so I hope I get it right. 1. The solubility of cobalt(II)hydroxide is 5.4*10^-6 moles/dm^3 in water. i) What is the solubility product? ii) What is the solubility of cobalt(II)hydroxide if pH is buffered to...

Hello all, I am struggling to find papers or textbooks that can give me the solubility (mg/L or similar) of Benzo(a)pyrene and other PAH's in pure water at STP... Does anyone hava link they can direct me towards for this, my SI Data book has nothing on the solubility of PAH's. Thanks-

Is propan-1-ol more soluble than propan-2-ol in water? Propan-2-ol has 2 alkyl group, which is electron donating. Since the formation of H-bonding is due to the elecrionegativity difference of O atom and H atom is the hydroxl group. I think think that the O atom in propan-2-ol can gain...

Homework Statement A sample of AgCl was treated with 5ml of 2M Na2CO3 solution to produce Ag2CO3. The remaining solution contained 0.003 g of Cl- per litre. Calculate the solubility product of AgCl.(Ksp of Ag2CO3 = 8.2 ×10-12) Homework Equations ksp of AgCl = [Ag+]×[Cl-] ksp of Ag2CO3 =...

This question probably belittles the complexity of the issue, but I thought I'd ask anyway: Are there any reasonable methods by which the solubility of ionic compounds (e.g., KCl, NaBr, CaO, etc.) in ionic liquids (e.g., 1-ethyl-3-methylimidazolium tetrafluoroborate, tetrabutylammonium...

Homework Statement Calculate the molar solubility of Cu(OH)2, Ksp = 2.2 × 10^–20, in 0.87 M NH3. Don't forget to use the complexation reaction Cu2+ + 4 NH3 ⇌ Cu(NH3)42+, K = 5.0 × 10^13. Homework Equations Ksp=[A]^m[B]^n Keq=[product]/[reactants] The Attempt at a Solution I...

Suppose we have a ligand binding to a receptor in solvent medium. I am interested to know whether there is any relation between "Binding free energy" and "Solubility". Extemely sorry if I posted my question in the wrong section. I'd be glad if anyone could help me out with this. Regards...

Hello, I have a problem with this task: "Water with pH 5 and reduction potential +0.30 V flows through copper pipe at 25 °C. Calculate how much copper dissolves (in ppm) in water due to corrosion of this pipe. Standard reduction potential of copper Cu0/Cu2+ is 0.34 V." I spent lot of...

are these soluble in water? Na2Cr2O7 (i think yes) (NH4)2Cr2O7 (i think yes) PbCr2O7 (i think no) CuI2 (no? whay is this disproving by rule that iodides and chlorides are soluble in water except for heavy metals?)

Hello all, I have a question about the solubility of a certain compound. The compound in question is a quaternary ammonium compound 60-80% concentration, 10-20% isopropanol, and 1-10% water. Is isopropanol the best organic solvent for this compound or would a combination of isopropanol...

Homework Statement "Vitamins are important chemicals for survival. Vitamin A, Vitamin B6, and Vitamin C are three common vitamins. Simplified representations of their structures are given. * See relevant equations. Based on the functional groups that you can identify, which vitamins...

I've been reading about calculating dissolved gas concentrations in water at varying temperature and salinities using an equation of the form: ln(β)=exp(A1 + A2*(T/100) + A3*ln(T/100) + A4*(T/100) + S*(B1 + B2*(T/100) + B3*(T/100)^2 where β is in units of mL/L, and A# and B# are...

The question is asking us to determine weather there is a Li+ Ion or Sr+2 ion in the solution We are using the precipitation method Using various solubility tables I determined that Sr+2 ion is not soluble with the sulphate ion SO-24 the course book uses the compound Na2SO4 my...

Homework Statement What [OH-] would lower the solubility of Mg(OH)2 to 1.5 x 10-5 mol/L? Ksp is 1.5 x 10-11 for Mg(OH)2. Homework Equations Ksp=products/reactants The Attempt at a Solution ICE box method Mg OH (2) Mg(OH)2 initial: ? and I don't know what to do from here...

Homework Statement What concentration of ethanoate (acetate) ions is expected in a 0.18 mol/L solution of ethanoic (acetic) acid? Ka is 1.76 x 10-5 at 25°C. Homework Equations Ka=products/reactants The Attempt at a Solution I know that Ka=1.76 x 10-5=products/reactants but I...

Hi. Let's say we have a salt AB with a very low Ksp. A bunch of it gets thrown into the water and mixed. So: K=[A+][B-]/[AB]. Ksp=[A+][B-] Why is it OK to remove [AB], then? ie why does [AB] equal 1? I thought [AB] was concentration of the substance in the water, but it is the...

Hi! Can anyone inform me on the solubility of p-nitrophenol? I want to make 1 molar solution of the substance, which is 0.0139g/100 ul (MW is 139). Unfortunately, my solution seems to be supersaturated as the solute is still visible. Do I need to do anything to my solution to make it...

Hi all, I'm working on a project of carbon dioxide photocatalytic reduction. I need to dissolved as much CO2 as possible in water. Right now, the idea is to build a pressurized vessile (not overly high, probability no more than 3 atm) operates at room temperature. A diagram of CO2 solubility...

Homework Statement What is the solubility product for copper(I) sulfide, Cu2S, given that the solubility of Cu2S is 8.5 × 10-17 M? Homework Equations Cu_{2}S \leftrightarrow 2Cu^{+} + S^{2-} The Attempt at a Solution Set up the equilibrium constant expression: K_{sp} =...

I am very confused at why some metals can be miscible mixed while some are separated during solidification. Can someone help me on this? Great thanks.

Why is Δsolubility / Δtemperature so much lower for NaCl than for other ionic compounds like KCl and NaNO3? (It's solubility curve is almost flat).

Homework Statement Rank the solubilities of these organic compounds from lowest to highest: Hydrocarbons, aldehydes, alcohols, carboxylic acid. The Attempt at a Solution I know that hydrocarbons is the lowest - it cannot form H bonds with itself nor can it form H bonds with water...

Hi I am looking for the solubility of acetyl salicyclic acid in ethyl acetate vs. temperature. So far I have only been able to find its solubility at 25 degrees C (0.453 M). However, I would like to know its solubility at higher temperatures (77 degrees C, to be precise). If anyone knows...

Homework Statement [/b] what types of fertilizers (excluding ammonium nitrate and urea) dissolve in distilled water at temperatures of 5,10,20 (Celsius) and solubility expressed in (g/l) I found Potassium nitrate 133, 170, 209 and Potassium sulfate 80, 90, 111.

The Solubility Constant for AgI(s) at 25 degrees Celsius is 8.3*10^-17 how do i find \DeltaG(rxn) for [Ag+]=9.1*10^-9 & [I-]=9.1*10^-9 Using the equation: ΔG=ΔGº+RTln(Q) Let K=Our solubility constant: 0=ΔGº+RTlnK ΔGº=-RTlnK Now, ΔG=-RTlnK+RTlnQ ΔG=RTlnQ-RTlnK ΔG=RT(ln(Q/K)) ΔG=-5.67KJ/mol...

In an experiment, 7g benzoic acid is dissolving to 350ml distillated water in 500ml conical flask at 60C for a period of time. 100ml of solution is then withdrawn and place at 40C water bath. After several minutes, 10ml sample is withdrawn and the weight of sample is 9.58g. The solution is then...

Homework Statement A solution contains 1.73 x 10^-3 mol/L of Ba(NO3)2(aq) and 1.2 x 10^-3 moles of NaF. What mass of KF added to this solution would produce 2.7 x 10^-3g of precipitate from this solution if the Ksp of BaF2 is 1.84 x 10-7 and you have 1.0L of solution? Homework...

Homework Statement What is the solubility (M) of PbCl2 in a0.15M solution of HCl? The Ksp of PbCl2 is 1.6*10^-5 answer is 7.4*10^-4 Homework Equations Ksp= [Pb] * [Cl]^2 The Attempt at a Solution Like the other question I posted I need help with the working. I tried 4x^3 =...

Homework Statement Basically, I missed a quiz question that had to do with solubility. According to the instructor's own rules AND everything I have read online, iron (iii) carbonate is insoluble. Homework Equations The Attempt at a Solution

Zn(II) ions form a white ppt. zinc hydroxide with an aqueous solution of ammonia. The white ppt. dissolves when a ammonium chloride solution is added to it. Which statement explains this observation? A. a soluble zinc chloride compound is formed B. ammonia molecule is a stronger ligand than...

Say I've got a solid lump of CaSO4 that I put into water. When I first learned about Solubility Constants, Ksp was defined as [Ca][SO4], meaning how much Calcium and Sulfate ions dissolved. But now I found out when I look up a Ksp value it is [Ca][SO4]\gammaCa\gammaSO4. I understand the...

I would like to know the use of lactose and galatose in human with regarding to their solubility. how does low solubility of lactose can be made good use on human? what are the uses of galactose for human other than making guma?

Homework Statement What is the minimum quantity of ammonia which must be added to 1L of a solution in order to dissolve 0.1 mole silver chloride by forming [Ag(NH3)2]+. Given Ksp- 10^-10 and Kf- 10^8 Homework Equations The Attempt at a Solution I used the equation (which I...

Does anyone know any list of oxides or hydroxides that are soluble in water? AND If the term 'tetrahedral' means being bonded to 4 other atoms, are there other terms that mean being bonded to 3 atoms, 2 atoms, etc.? Thanks.

Dear Forum members, Situation: 3000 litre of water is pressurized with 1 bar helium gas in closed tank. question 1: My question is that, if i know the solubility of helium gas in water at 1 bar partial pressure of helium over water at temp of 25 deg is 0.00145 g/litre, Whether i can apply...

Homework Statement A.) Calculate the molar solubility of barium fluoride BAF2 in water at 25 degrees Celsius. The solubility product constant for BaF2 at this temperature is 1.0 x 10^-16 B.) What is the molar solubility of BaF2 in 0.15 M NaF at 25 degrees Celsius? Compare the solubility...

Homework Statement okay. so i did a chromotography experiment with spinach leaves. A line of pigments separated from the spinach leaves was put on the chromatography paper. Then the paper was put in petroleum ether. It showed carotene at the top, followed by xanthophylls, then chlorophyll...

Homework Statement The solubility constant for AgBr in water is 5.2 x 10-13. What is the aqueous solubility of AgBr? Homework Equations Ksp= [Ag+][Br-] AgBr is a constant and therefore is not part of the Ksp.The Attempt at a Solution NVM solved problem. Should use ICE table.

Homework Statement 1. A 1L solution contains 0.1M of each Pb+2,Ca+2, and Sr+2. Which ion precipitates last as Na2SO4 is slowly added with no change in volume? 2. What is the concentration of the ion that precipitates first when the second ion precipitates? Given: Ksp PbSO4=1.8x10^-8 Ksp...

Homework Statement Explain why sodium azide has a lower solubility than hydrazoic acid in hexane. Homework Equations The Attempt at a Solution How to determine the solubility of solution in organic compounds? Thankyou

Homework Statement There are a problems I wasn't sure about on my test. Trying to get answers for ones I had to guess on. 1. What is the maximum [Mg] that can be achieved in an aqueous solution of Mg(OH)2 with a pH=12.50? Ksp (Mg(OH)2)=5.6e-12 2. Determine the max solubility of CaF2...

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...