Solubility Products 3.6
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Paid Version
Publisher Description
Solubility Products is a tool for accurate estimation of concentrations of solutes upon dissolution of solid compounds of low solubility. The tool is applicable to various chemical equilibrium tasks, such as: salt dissociation, common-ion effect, separation by sedimentation and precipitation titration.
App includes database of low solubility compounds. The app will suggest list of compound names and chemical formulas based on the characters typed in 'Solid' field. Upon selection of the compound from database, app will provide balanced dissolution reaction and equilibrium constant.
Application derives final, equilibrium concentrations of solutes based on equilibrium constant (Ksp), initial concentrations, solubility and stoichiometric coefficients. Additionally, app calculates reaction quotient for any given concentrations and stoichiometry.
For a general dissociation chemical reaction:
S(s) = aA + bB +cC,
the Reaction Quotient (Q) is defined by:
Q = A^a * B^b * C^c
where A, B, C – are solutes (electrolytes, ions, etc.) concentrations and a, b, c are stoichiometric coefficient. Sum of powers determines the reaction order.
If Q is not equal to reaction equilibrium constant Ksp, then reaction is not at equilibrium and it will proceed (due to difference in forward and reverse reaction speeds) to the direction defined by Q.
If Q is less than Ksp reaction will move towards products (A&B&C), if Q is larger than Ksp – reverse reaction will prevail.
Example:
For given reaction: S(s) = 2A + 1B +3C, initial reaction concentrations are Ao=0.1M, Bo=0.2M, Co=0.3M and Ksp=1e-6 M6.
the Reaction Quotient (Q) is defined by:
Q = A^2 * B * C^3
upon q="">
The new equilibrium concentrations of reaction components can be derived from the equation:
Q = (Ao-2x)^2 * (Bo-x) * (Co-3x)^3
Apparently, solving this equation is rather demanding task, that turns to be unnecessary, since “Solubility Products” app immediately returns the answer: Aeq=28.98mM, Beq=0.1645M, Ceq=0.1935M and additionally 0.036 mole of solid precipitated.
The application features:
To start calculation user is required to fill in stoichiometric coefficients, initial concentrations of available components, solution volume and equilibrium constant Ksp or Solubility.
The solubility in pure solvent (water) only is evaluated and must be filled in and not in the current conditions. Presence of common ions can decrease solubility of solid!
Either Ksp or Solubility values must be present! When only solubility value is available the app will automatically calculate Ksp and vice versa.
Volume of solution is a must to evaluate change in amount of solid compound, it is adjustable and automatically set to 1 litre.
Important!!! If available amount of solid is not enough, then it will be completely dissolved without achieving equilibrium conditions!
When Molar mass (Mw) of solid is filled in, then solid mass and solubility calculated and inserted in g/l units, otherwise it is set to mole/l. Beware of transformations accompanied with filling and deleting of Mw value! Once Mw value is filled in and “Done” is pressed (!), a solid mass and solubility are recalculated to new units.
To start calculation initially or after updating the concentration or coefficient fields, user is requested to tap Run button! The values are valid only if Run button is greyed out!
Significant attention should be paid to concentration, solubility and equilibrium constant units!
The power of equilibrium constant units depicted as “x” is defined as (a+b+c), where a, b and c are the stoichiometric coefficients of the reaction.
Nov 28, 2023
Version 3.6
Compatibility update.
About Solubility Products
Solubility Products is a paid app for iOS published in the Kids list of apps, part of Education.
The company that develops Solubility Products is Roman Volinsky. The latest version released by its developer is 3.6.
To install Solubility Products on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2023-11-28 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Solubility Products as malware if the download link is broken.
How to install Solubility Products on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Solubility Products is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Solubility Products is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
