Stoichiometry Pro 1.9
Continue to app
Paid Version
Publisher Description
Stoichiometry Pro targets common stoichiometric tasks: balancing chemical reactions of unlimited number of components, finding molar masses, moles and masses of reactants and products and defining the limiting reagent, based on chemical formulas, stoichiometric coefficients, and any quantitative data provided.
The app analyses chemical reaction typed in “Reaction” field, balances it (if possible), finds molar masses and builds table with list of compounds (reagents and products coloured differently), for quantitative data input. All that triggered by pressing the = button.
Example 1: How many moles of H3PO4 are needed in order to obtain 2.0 g of NH4NO3, in the reaction:
H3PO4 + (NH4)2MoO4 + HNO3 = (NH4)3PO4(MoO3)12 + NH4NO3 + H2O
Solution: The first step is balancing chemical reaction and finding molar masses, since moles-mass conversion is needed. Reaction is balanced and all molar masses are calculated automatically by pressing the “=” button.
H3PO4 + 12(NH4)2MoO4 + 21HNO3 = (NH4)3PO4(MoO3)12 +21NH4NO3 + 12H2O,
The next step is to find the moles of NH4NO3 from the mass (2.0 g), and then convert them to moles of H3PO4 based on 1:21 ratio obtained from the balanced reaction. Stoichiometry application provides data table that comprised of masses and mole rows for data available before reaction initiated and obtained or left after the reaction is accomplished. When calculate button that pointing towards products, ▶▶ is pressed, the final masses and moles are calculated from the initially provided amounts of reactant and products. On the opposite, when the calculate button pointing left,◀◀, is pressed, then initial reactant and product amounts that would be required to achieve the provided final state are calculated. The later is exactly matches our situation, as we need to find the initial amount of H3PO4 from the final, known NH4NO3 mass. So we set the NH4NO3 mass (2.0 g) to the final mass field and press calculate button ◀◀ to automatically fill the table with all masses and moles for all components. Apparently, 1.19 mmoles of H3PO4 are required to get 2.0 g of NH4NO3.
Important Points:
Either moles or masses can be filled in, but if both are provided and they don’t match, then the moles value will have a preference.
For balancing redox reactions please refer to Electrochemistry application.
Jul 18, 2022
Version 1.9
Compatibility update.
About Stoichiometry Pro
Stoichiometry Pro is a paid app for iOS published in the Kids list of apps, part of Education.
The company that develops Stoichiometry Pro is Roman Volinsky. The latest version released by its developer is 1.9.
To install Stoichiometry Pro 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 2022-07-18 and was downloaded 11 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 Stoichiometry Pro as malware if the download link is broken.
How to install Stoichiometry Pro on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Stoichiometry Pro 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 Stoichiometry Pro 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.
