Ksp Definition and 55 Threads

Kulspruta m/42 (ksp m/42), Swedish designation for a heavily modified, license-built derivative of the M1919A6 chambered in 6.5×55mm or 8×63mm patron m/32 and from 1975 in 7.62×51mm NATO.
The Ksp m/42B was a lighter version with a distinctive bipod, shoulder stock (used in a similar way as the M1919A6) and a spade grip chambered in 6.5×55mm and later in 7.62×51mm which can be recognised in its corrosion resistant green finish.It was used by Swedish forces during the Congo Crisis.

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  1. S

    Chemistry Is this the right way to approach solubility problem?

    Is my work and the answer correct? If not, how should I approach this problem? Thank you!
  2. sneakycooky

    Chemistry What precipitates form by mixing 2 saturated solutions?

    At first I thought it was C. A few sources agree with me. The book says D is correct. Here was my reasoning for C: With both salts having a formula of MX3, their [OH-]'s can be compared according to their Ksp values. Tl(OH)3 has a smaller Ksp, so it has a smaller [OH-] at saturation than...
  3. X

    Was KSP a somewhat accurate space flight simulator?

    KSP was one of the most famous science games as it simulates a complete space program, as well as physics such as aerodynamics and orbital mechanics. Such science focused games are rare, and something favourable amongst nerds. To make it even better, it is easy to modify the game and add almost...
  4. Prof Sabi

    Schools Should I add KSP in my MIT college application?

    Hello family, :smile: I am applying to MIT this year for fall of 2019 in dept of Aero And Astro I am seeking for some advice, that if there is any space for adding KSP missions(Obviously successful ones) in my college application and also some of Astrodynamics and Astrophysics I know... My Mini...
  5. B

    Help please with this precipitation exercise

    Knowing Ks=6⋅10−38 for Fe(OH)3 in neutral solutions, calculate the minimum pH of an acidic solution in order to completely dissolve 10 mg of Fe(OH)3. Data: Volume = 0.1 L. I set out the equation for the equilibrium constant. having first calculated the concentration or iron ions (9.35899*10-4...
  6. Z

    What are the units for Ksp and why are they not always included in calculations?

    Homework Statement I have found, through experimentation, the ksp of calcium hydroxide to be 3.0 x10^-7 (which i know has a pretty large percent error). However, i am conflicted as to what the units should be because logically, plugging the units into the ksp equation should give you units of...
  7. Z

    Calculating the Ksp of Calcium hydroxide at room temp

    Homework Statement I conducted a titration experiment in which 0.1g of KHP was dissolved in 50mL of distilled water and placed in an Erlenmeyer flask. I filtered a Ca(OH)2 solution (that was left out open on the lab benches for us to use) and put that into the burette and titrated. Ultimately...
  8. A

    Ksp and Q precipitate, Why does volume of water matter

    Homework Statement Homework EquationsThe Attempt at a Solution [/B] So here's my question again, why do you need to include 40L of water in the total volume? It's not like AgCl is going to dissolve in water right? AgCl has low solubility in water. I mean if it was like NaCl then you should...
  9. ReidMerrill

    Maximizing Precipitation Efficiency: Balancing Common Ions in Ksp Equations

    Homework Statement Is it possible to precipitate 99.0% of 0.010 M Ce3+ by adding oxalate (C2O42-) without precipitating 0.010 M Ca2+ CaC2O4 Ksp = 1.3 x 10-8 Ce2(C2O4)3 Ksp = 5.9 x 10-30 Homework Equations 1.3x10-8 = [0.01M][C2O4-] 5.9x10-30=[0.01M]2[C2O4]3 The Attempt at a Solution All I've...
  10. T

    What is the concentration of ions from Ksp?

    Homework Statement Homework EquationsThe Attempt at a Solution I am not too confident with my knowledge of Ksp so just checking my answer. Ksp = [Hg2+][S2-] Therefore root Ksp to get [Hg2+] = 1.2649*10-26. So answer is B. Is this right? Cheers!
  11. T

    Ksp and precipitation of carbonates

    Homework Statement Homework EquationsThe Attempt at a Solution The lower the Ksp, the more insoluble. Therefore, I chose B since strontium and barium carbonates have the lowest Ksp. However, the question asks which carbonate will precipitate and I know that all carbonates are insoluble. Can...
  12. RoboNerd

    Dissociation vs Solubility: Are They Interchangeable Terms?

    Homework Statement Hello all! Say I have an ion XY. I dissolve it in a solution. What is the difference between its dissociation or solubility, or are they the same? Seems my ap chem review book is using these two terms interchangeably and I am just plain confused. Thanks Homework Equations...
  13. RoboNerd

    Quick Question about theory in solving Ksp?

    Homework Statement [/B] Lead chromate, PbCrO4, is a yellow pigment used in paints. Suppose 0.50 L of a 1.0 x 10-5 M Pb(C2H3O2) and 0.50 L of a 1.0 x 10-3 M K2CrO4 solution are mixed. Calculate the equilibrium concentration of Pb+2 ion remaining in the solution after PbCrO4 precipitates. What...
  14. RoboNerd

    Why is Pure Water Most Soluble for AgCl?

    Homework Statement In which one of the following solutions is silver chloride the most soluble? A) 0.181 M HCl B) 0.0176 M NH3 C) 0.744 M LiNO3 D) pure water E) 0.181 M NaCl Homework Equations the Ksp expression for the dissolution of AgCl is: Ksp = [Ag+][Cl-]The Attempt at a Solution...
  15. T

    Calculating Ksp vs Keq: Are There Differences?

    I have searched on multiple websites and they have conflicting arguments about Ksp vs Keq. Some say they are calculated the exact same way, some say Ksp is more flexible (I don't know how) and some say they are calculated differently. Could someone tell me if there are any differences in their...
  16. collinsmark

    Kerbal Space Program Tutorial Series - Open Access to 1.7

    "How hard can rocket science be anyway?" Kerbal Space Program is a sandbox type computer game that leans heavily on concepts of physics (don't let that scare you though, you don't need a calculator nor a book of equations to play it. It's ultimately very intuitive). Given the physics nature of...
  17. Neptune2235

    Solubility Product Constant (Ksp) Problem

    5g of AuBr3 (Ksp = 4.0 x 10^-36) are placed in 25 ml of water, how many grams of Au ions are dissolved in the 25 ml? My instructor used the conversion factor (6.2 x 10^-10 mol Au ions) to get from 25 ml H2O to grams Au. I believe the conversion from ml of H2O to grams of Au is: 25ml H2O x...
  18. collinsmark

    Kerbal Space Program - Efficient Launch into Orbit

    Efficient launch into orbit. Designing a small, simple, efficient and stable launch vehicle to get into Kerbin's orbit can be done pretty easily. But in order to avoid building oversized, overcomplicated, drag prone behemoths (like the one I was using in the first post of this thread), one...
  19. Y

    Is There Missing Information in the Ksp Equilibria AgCl Data?

    Please look at attached picture. So, I tried solving it. Apparently, the answer is C. But, I think there is missing information (ie the volume of the initial solution). Care to back me up on this?
  20. Ritzycat

    How do I Calculate the Ksp of Ag2CrO4 Using Experimental Data?

    Homework Statement I have to calculate the KSP of Ag2CRo4. I did this lab several days ago and I'm completely stumped. If anyone could help me out here, at the least guide me in the right direction so I can get this done as I am getting very frustrated :P Here is the data I have derived...
  21. K

    Understanding the Constant Nature of Ksp in Solution Calculations

    My lab group and I are a bit confused. We are doing a lab where we need to calculate the Ksp of calcium hydroxide in pure water and then in different concentrations of calcium chloride and potassium chloride to analyze the diverse and common ion effect. I was absent one day but my lab partner...
  22. Q

    Ksp with significant anion hydrolysis

    When calculating a Ksp for a salt with a significantly basic anion, e.g. silver cyanide, AgCN, given the experimental molar solubility value (s), should one write the Ksp expression as: K_{sp} = [Ag^{+}][CN^{-}]^{x}, where x is the fraction of the concentration cyanide ion at equilibrium with...
  23. Q

    Ksp of Hydrogen Sulfide: The Perils

    Homework Statement http://i.minus.com/jfSl42bdxVH40.png Homework Equations pHO = -log[HO^-] The Attempt at a Solution 1) Sulfide ion is a strong base so sulfide ion does not exist in water. Sulfide ion reacts with water upon contact to an extent of 100%. The reaction of...
  24. U

    Chemistry: Ksp calculation confusion

    Homework Statement I have to calculate the Ksp value for calcium hydroxide from experimental data. We titrated 10.00 mL of saturated Ca(OH)2 aqueous solution with 11.00 mL of 0.01607 M EDTA. Homework Equations The Ksp formula is given in my manual as [Ca^2+]*[OH^-]^2 The Attempt at...
  25. J

    Calculating Ksp from Molar Solubilty

    Homework Statement The molar solubility of magnesium fluoride, MgF2 is 1 x 10-3 in pure water. What is the Ksp for MgF2? a)4 x 10-3 b)4 x 10-6 c)4 x 10-9 d)2 x 10-3 e)1 x 10-3 My book says the correct answer is C in bold. Homework Equations Ksp= [Mg2+][F-][F-] The Attempt at...
  26. F

    Find Ksp of KHT: Determine [K+] and [HT-]

    Homework Statement Determine [K+] and [HT-] in this solution. If the temperature is Tp, a trace of solid is present and reaction is at equilibrium. Determine Ksp at this temperature. There is 0.950 g of KHT dissolved in 25.00 mL of solution. Homework Equations KHT(s) ⇔ K+(aq) +...
  27. D

    What is the solubility of Al(OH)3 in 0.0010 M Al(NO3)3?

    Homework Statement The Ksp of Al(OH)3 is 1.0 x 10-33. What is the solubility of Al(OH)3 in 0.0010 M Al(NO3)3? Give your answer using scientific notation and to 2 significant figures (i.e., one decimal place). Homework Equations The Attempt at a Solution I can solve easier...
  28. A

    I dont understand how solubility product (Ksp) work?

    Suppose the Ksp value of AgCl is 2 x 10^-10. Lets say we have a saturated solution of AgCl, i.e concentration of Ag+ ions = concentration of Cl+ions = (2 x 10^-10)^0.5=1.41 x 10^-5 Ok so what i know is that if we add more Ag+ ions in the solution, precipitation of AgCl would occur since...
  29. H

    Analytical Chemistry- Ksp problem help

    Homework Statement Find the concentration of Pb2+ in 0.0010 M KI with PbI2. Include activity coefficients in your solubility-product expression. The Ksp of PbI2 is 9.8*10^-9 Homework Equations Ksp= [Pb2+]\gammaPb2+[I-]2\gamma2I- Assume that [I-]=0.0010 M. The ionic strength of 0.0010 M Ki...
  30. jaumzaum

    Doubts about Ksp, Solubility, Kb - Answered by João

    I'm having some doubts about Ksp, solubility, Kb... 1) If a salt has a solubility of 1g/L, it means that a) there is 1g of the salt itself in aqueous state in the solution or b) there is 1g of salt(aq) + salt ions in solution? 2) The elements of the 2A family makes moderate bases. That's...
  31. D

    How to Calculate the Ksp of PbI2 at 25°C?

    Hey guys, I'm having trouble calculating the Ksp of this equation. I found an equation online but I don't understand it. I have Ksp=[Ca2+][IO3-]^2. I don't understnad how to use this formula? Thanks! The concentration of a saturated solution of PBI2 in water is 25ºC is 540...
  32. S

    Calculating Ksp of Ag2CrO4 from Experimental Data

    Homework Statement Hi, I need to calculate the Ksp of Ag2CrO4 based on experimental data. During the experiment, 1.25g of pure copper was placed in a 1.00 L solution of silver chromate. When the copper was extracted, only 1.24g remained. Balanced chemical equation: Cu + Ag2CrO4 -->...
  33. A

    Ksp, saturated solutions and precipitation (Ionic Equilibria)

    I have the following doubts while understanding the concept. Please help me solve them :- (1) What is a precipitate exactly? While determining the Ksp values, we say that there in a dynamic equilibrium between the solid undissolved solute in contact with the solution and the ions in solution...
  34. F

    Using Ksp to find the concentration

    Homework Statement 0.1100 mol AgNO3 translated into 500 mL of a solution containing 0.1000 moles of NaCl and NaBr 0.1000 moles. What are the concentrations of Ag+, Cl-, Br-, after equilibrium has occurred? Solubility product for AgCl: Ksp(AgCl) = 1,82*10^-10 Solubility product for AgBr...
  35. D

    Chem: Ksp & deltaG for Ag2CO3 at 20C and 100C

    Hello! I've just completed this homework problem but got ALL answers incorrect. I really thought I knew what I was doing so I'm kind of surprised. Could someone help point out what I had done wrong? Homework Statement Ag2CO3, is considerably more soluble in hot than in cold water. At 20 °C...
  36. M

    Chemistry: Finding Ksp for Ca(OH)2

    Homework Statement What is the concentration of hydroxide at equilibrium in a solution that contains a mixture of .10 M sodium hydroxide and .20 M calcium chloride? I know that the reference value for Ca(OH)2 is 6.10 x 10^-6 Equation: 2NaOH(aq) + CaCl2(aq) ---> 2NaCl(aq) + Ca(OH)2(s)...
  37. R

    How to Calculate Ksp for Ferrous Oxalate in a Galvanic Cell?

    Homework Statement A student constructs a galvanic cell with one half-cell containing 0.11M ferrous nitrate, Fe(NO3)2, and the other half-cell made from 50.0ml of 0.15M oxalic acid and 1.0ml of the 0.11M ferrousnitrate. Ferrous oxalate is only slightly soluble. The half-cells contain iron...
  38. N

    What is the solubility of PbCl2 in a 0.15M HCl solution?

    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 =...
  39. R

    How to Calculate Ksp for Ag2SO4 Using Electrochemistry?

    Homework Statement An electrochemical cell is made up of a Pb and an Ag electrode: Ag+ + e --> Ag(s) E = 0.8V Pb2+ + 2e --> Pb(s) E = -0.13V Calculate the Ksp for Ag2SO4(s). "Note that to obtain ions in the right compartment, excess silver sulfate solid was addded and a...
  40. A

    Inorganic Chemistry. Calculating Ksp

    Homework Statement i need help going from g/ml to mol/L Calculate Ksp AgC2H3O2=102 g/ml Homework Equations Ksp=[Ag][C2H3O2] The Attempt at a Solution i really have no idea how to do this. Our teacher never taught us this and expects me to know how..
  41. S

    Ksp Equation for CaF2: Coefficients and Stoichiometry Explained

    CaF2⇔Ca+2F. Many places state that Ksp=[Ca][2F]^2; Ksp=[x]*[2x]^2. I thought the coefficient go into Ksp equation as an exponent. So, Ksp=[Ca][F]^2. Can anyone explain which is correct, or why [2F]^2 (if that's the correct one)?
  42. M

    Ksp vs Ka: What's the difference and how does it relate to precipitation?

    Homework Statement NaCl is added slowly to a solution that is 0.010M in each Cu+, Ag+ and Au+. Ksp's are 1.9x10^-7, 1.8x10^-10 and 2.0x10^-13 respectively. Which compound will precipitate first? Can anyone tell me how the Ksp is different from Ka? and the relationship to precipitation?
  43. E

    Calculating Ksp: A Temperature-Dependent Approach

    Is it possible to calculate Ksp at a certain temperature if you know Ksp at a different temperature and \Delta H?
  44. E

    Why is My Free Energy Calculation from Ksp Incorrect?

    Okay so I'm confused. In my book it says that ksp for Ca(OH)2 = 6.5E-6 and \Delta G=-898.5 yet when I use the equation \Delta G=-RTln(Ksp) the value I get is 29.59KJ/mol. I used R=8.314 and T=298K. What's up with that? Thanks.
  45. C

    Ksp of Calcium Hydroxide - A Percentage Error of 480%?

    Ksp of Calcium Hydroxide - A Percentage Error of 480%?? Homework Statement I did a titration between HCl and Ca(OH)2. I use the indicator Phenopthalein I did most of my calculations and thru repeated checking cannot find any significant error in my calculations. However, upon...
  46. N

    Solve Ksp Equation for Sn^2+ When MnS Begins to Precipitate

    Homework Statement For stannous sulfide, SnS, the Ksp = 1.0X10^-25 For manganese sulfide, MnS, the Ksp = 3.0 x 10^-15 Assume a solution contains .01 M Sn^2+ and .01 M Mn^2+. If the sulfide ion (S^2-) concentration is increased gradually without any dilution of the first solution, what...
  47. J

    How Do You Determine Ksp for Silver Sulfate?

    Homework Statement Ok, to determine ksp we need to know the concentratison of Ag+2 and SO4-2 Homework Equations to find ksp for calcium hydroxide we used titration The Attempt at a Solution i was thinking about evaporting it but I am not sure if I am right, help...
  48. B

    How to Calc molar concentration from Ksp

    What is the Molar Concentration of Sr(CO3)3 if Ksp=9.3 X10^-10 I believe you have to balance the equation and i got Sr(CO3)3= Sr + 3 CO3
  49. H

    Experimental Procedure for Calculating Ksp of PbCl2 at Lab Temperature

    What would be an experimental procedure to determine Ksp of PbCl2 at lab temp, I think 22-25 degrees (the reaction being PbCl2 (s) ---> Pb + 2 CL). I am thinking that you'd take random amounts of Pb and Cl and wait for it to reach equilibrium and then somehow figure out how much of each chemical...
  50. R

    Ksp Pre-Lab Help: Calculate Pb(II) & I- at Equilibrium

    Hi, I'm trying to do my prelab and I have no idea where to start... if someone can point me to the right direction, I will absolutely be grateful... :redface: Given the following equilibrium: PbI2 <----> Pb + 2I You have a solution of the following: 4.77 ml of .00274M Lead Nitrate...
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