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Feb 13, 2026
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Fun with Chemical Equations: Mole-to-Mole and Mass Conversion
Mae
@maeday
1 / 9
Page 2: Practical Applications of Mole-to-Mole Calculations
This page focuses on applying stoichiometric calculations to various chemical reactions, including phosphorus oxidation and aluminum-copper reactions. Students practice converting between moles of reactants and products.
Example: The reaction 4P + 5O₂ → 2P₂O5 demonstrates how to calculate moles of P₂O5 formed from given moles of O₂.
Highlight: Multiple practice problems reinforce the concept of using mole ratios in balanced equations.
Page 3: Introduction to Mole-Mass Stoichiometry
This section advances to two-step stoichiometry problems, introducing mass-to-mole conversions alongside mole ratios. The content explains how to incorporate molar mass into calculations.
Definition: Molar mass is the mass of one mole of a substance, expressed in grams per mole.
Example: Converting 34.8 moles of NH3 to grams of H₂ using the balanced equation 1 N₂ + 3 H₂ → 2 NH3.
Highlight: Understanding molar mass is crucial for converting between mass and moles in stoichiometric calculations.
Page 4: Advanced Stoichiometric Calculations
This page explores more complex stoichiometry problems involving compounds like acetylene and calcium carbide. It demonstrates how to calculate molar masses and perform multi-step conversions.
Example: Calculating the mass of acetylene (C₂H₂) produced from a given number of moles of calcium carbide (CaC₂).
Vocabulary: Molar mass calculations require adding the atomic masses of all atoms in a compound.
Page 5: Practice Problems and Applications
The final page provides additional practice problems focusing on oxygen and phosphorus reactions. It reinforces previous concepts through practical applications.
Example: Calculating the molar mass of O₂ and determining moles of P₂O5 formed from given masses of reactants.
Highlight: These problems demonstrate the practical application of stoichiometric calculations in real chemical scenarios.
Additional Practice Problems
Provides further practice with stoichiometric calculations.
Example: Calculation involving the reaction 4P + 5O₂ → 2P₂O₅.
Example: Analysis of titanium tetrachloride extraction from titanium(IV) oxide.
Mass-Mass Stoichiometry
Introduces three-step stoichiometry problems involving mass-mass conversions.
Definition: Mass-mass stoichiometry involves converting between masses of different substances in a reaction.
Example: Calculating grams of H₂ needed to produce 34.8 grams of NH₃.
Advanced Practice Problems
Contains more complex stoichiometry problems for practice.
Example: Calculations involving P₂O₅ formation and B₂O₃ reactions.
Highlight: Emphasizes the importance of showing detailed mathematical work.
Volume Conversions
Introduces gas volume calculations at STP.
Definition: At STP (0°C and 1 atmosphere), one mole of any gas occupies 22.4 L.
Example: Calculating liters of N₂ needed to produce 38.2 g of NH₃.
Page 1: Introduction to Stoichiometry
This page introduces fundamental concepts of stoichiometry and its importance in chemical calculations. The content explains how chemists utilize balanced chemical equations to determine quantities of reactants and products.
Definition: Stoichiometry is the calculation of reactant and product amounts in chemical reactions using balanced equations.
Vocabulary: A mole ratio is a conversion factor derived from coefficients in a balanced chemical equation, expressed in moles.
Example: Using the equation 1 N₂ (g) + 3 H₂ (g) → 2 NH3 (g), calculating that 52.2 moles of H₂ are needed to produce 34.8 moles of NH3.
Highlight: Mole ratios are essential tools for converting between quantities of different chemical species in a reaction.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
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This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
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Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
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I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
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Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
Fun with Chemical Equations: Mole-to-Mole and Mass Conversion
Mae
@maeday
Stoichiometry fundamentals guide explaining how chemists use balanced equations for chemical calculations and conversions.
Key points:
- Balanced equation mole mass conversion forms the foundation of stoichiometric calculations
- Mole-to-mole stoichiometry examples demonstrate how to use mole ratios from balanced equations
- Multiple... Show more
Page 2: Practical Applications of Mole-to-Mole Calculations
This page focuses on applying stoichiometric calculations to various chemical reactions, including phosphorus oxidation and aluminum-copper reactions. Students practice converting between moles of reactants and products.
Example: The reaction 4P + 5O₂ → 2P₂O5 demonstrates how to calculate moles of P₂O5 formed from given moles of O₂.
Highlight: Multiple practice problems reinforce the concept of using mole ratios in balanced equations.
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Page 3: Introduction to Mole-Mass Stoichiometry
This section advances to two-step stoichiometry problems, introducing mass-to-mole conversions alongside mole ratios. The content explains how to incorporate molar mass into calculations.
Definition: Molar mass is the mass of one mole of a substance, expressed in grams per mole.
Example: Converting 34.8 moles of NH3 to grams of H₂ using the balanced equation 1 N₂ + 3 H₂ → 2 NH3.
Highlight: Understanding molar mass is crucial for converting between mass and moles in stoichiometric calculations.
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Page 4: Advanced Stoichiometric Calculations
This page explores more complex stoichiometry problems involving compounds like acetylene and calcium carbide. It demonstrates how to calculate molar masses and perform multi-step conversions.
Example: Calculating the mass of acetylene (C₂H₂) produced from a given number of moles of calcium carbide (CaC₂).
Vocabulary: Molar mass calculations require adding the atomic masses of all atoms in a compound.
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Page 5: Practice Problems and Applications
The final page provides additional practice problems focusing on oxygen and phosphorus reactions. It reinforces previous concepts through practical applications.
Example: Calculating the molar mass of O₂ and determining moles of P₂O5 formed from given masses of reactants.
Highlight: These problems demonstrate the practical application of stoichiometric calculations in real chemical scenarios.
Sign up to see the contentIt's free!
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Additional Practice Problems
Provides further practice with stoichiometric calculations.
Example: Calculation involving the reaction 4P + 5O₂ → 2P₂O₅.
Example: Analysis of titanium tetrachloride extraction from titanium(IV) oxide.
Sign up to see the contentIt's free!
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Improve your grades
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Mass-Mass Stoichiometry
Introduces three-step stoichiometry problems involving mass-mass conversions.
Definition: Mass-mass stoichiometry involves converting between masses of different substances in a reaction.
Example: Calculating grams of H₂ needed to produce 34.8 grams of NH₃.
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Advanced Practice Problems
Contains more complex stoichiometry problems for practice.
Example: Calculations involving P₂O₅ formation and B₂O₃ reactions.
Highlight: Emphasizes the importance of showing detailed mathematical work.
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Access to all documents
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Volume Conversions
Introduces gas volume calculations at STP.
Definition: At STP (0°C and 1 atmosphere), one mole of any gas occupies 22.4 L.
Example: Calculating liters of N₂ needed to produce 38.2 g of NH₃.
Sign up to see the contentIt's free!
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Page 1: Introduction to Stoichiometry
This page introduces fundamental concepts of stoichiometry and its importance in chemical calculations. The content explains how chemists utilize balanced chemical equations to determine quantities of reactants and products.
Definition: Stoichiometry is the calculation of reactant and product amounts in chemical reactions using balanced equations.
Vocabulary: A mole ratio is a conversion factor derived from coefficients in a balanced chemical equation, expressed in moles.
Example: Using the equation 1 N₂ (g) + 3 H₂ (g) → 2 NH3 (g), calculating that 52.2 moles of H₂ are needed to produce 34.8 moles of NH3.
Highlight: Mole ratios are essential tools for converting between quantities of different chemical species in a reaction.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user