How to find limiting reactant Videos

• 1. Limiting Reagents - Example Problem
• 2. STOICHIOMETRY - Limiting Reactant & Excess Reactant Stoichiometry & Moles
• 3. Determining the Limiting Reactant
• 4. How to Find Limiting Reactant and Excess Reactant - Mr. Causey's Chemistry
• 5. STOICHIOMETRY - Solving Limiting Reactant Problems in Stoichiometry...Easy

Limiting Reagents - Example Problem

User Comments

Matthew Johnson III commented on 05 Mar 2015

ouwt??? FREAKIN NAZI CANADIANS! Lololol!! Na i keed i keed. I love Canadians! now tell me all abouwt limiting reactions.

Johnny Appleseed commented on 13 Jul 2015

+Matthew Johnson III get owwwuut of here

STOICHIOMETRY - Limiting Reactant & Excess Reactant Stoichiometry & Moles

User Comments

Mi Nombre commented on 11 Oct 2015

i don't understand why he divided the 20Lof O2 by 1 mol O2 and 22.4 L O2? Can someone explain? Where did the 22.4 L O2 come from?

Mehdi Touhouche commented on 08 Nov 2015

+Mi Nombre 1 mole of any gas is 22.4 dm^3 which is 22.4L

Neza G commented on 26 Sep 2015

someone explain 6:27???

DarkSamuraiAssassin commented on 28 Sep 2015

+Neza G Dimensional analysis.. and the mole ratio..

Brent Valenti commented on 17 Sep 2015

big time awsome

sciencepost commented on 18 Sep 2015

+Brent Valenti Love hearing this!

jonathan woods commented on 05 Jul 2015

Why did you waste our time by posting this video? You explained nothing. 11 mins I'll never get back, thanks!

sciencepost commented on 05 Jul 2015

+jonathan woods LOL. Sorry for those 11 min :) Best wishes learning.

Abigale Lawrie commented on 03 Jun 2015

how did you get the 22.4l as the bottom half of the second reaction shown.. a bit confused to how you get 22.4l

Stefan Podlewski commented on 18 Jun 2015

+Abigale Lawrie 22.4 liters is the strand gas law

Beto Moris commented on 19 Apr 2015

Youtube always saving my a$$ before an exam... Thanks +sciencepost keep it up !

sciencepost commented on 21 Apr 2015

+Beto Moris I love to hear that the vids keep helping people like you out. Keep coming back for more and never quit on learning!

Matthew Doe commented on 01 Apr 2015

You don't even explain how you do your calculations, how do you expect people to understand your work?????

Valor Nash commented on 20 May 2015

+Matthew Doe Because you can't really work on limiting reagents with out first understand how to do the other equations. If you want to go anywhere with science or mathematics, most professors will skip over the calculations that you should already know in order to get to the main idea.

Byd Retros - PS3 commented on 12 Mar 2015

thanks alot for your help :)

Byd Retros - PS3 commented on 13 Mar 2015

thanks alot :)

sciencepost commented on 13 Mar 2015

+Byd Retros - PS3 I'm so stoked that it worked. Keep up the studies.

Thabang Ulysses commented on 04 Mar 2015

thanks

sciencepost commented on 05 Mar 2015

+Thabang Ulysses Glad to be of help. Keep on learning :)

cjt0123 commented on 17 Feb 2015

Thanks! I really appreciate anyone who takes the time to create videos like these

sciencepost commented on 17 Feb 2015

+cjt0123 Thanks. It's really cool to hear that it helps. Best wishes learning.

Determining the Limiting Reactant

How to Find Limiting Reactant and Excess Reactant - Mr. Causey's Chemistry

User Comments

Muhja Ismail commented on 15 Dec 2015

thaaaaaaaaaaaaaaaaaaaaank you so much .. I have a mock exam today ad u just saved me thank you so much

Mr. Causey commented on 16 Dec 2015

+Muhja Ismail You're welcome. Thanks for watching.

saad refai commented on 11 Aug 2015

Sir, i still have a problem with part a). I still dont get which is the limiting and which is the excess.

saad refai commented on 12 Aug 2015

Owwww Thank you sir !

Mr. Causey commented on 12 Aug 2015

+saad refai Check out the videos in the description for further information. Remember the limiting reactant is the one that is used up first.

saad refai commented on 11 Aug 2015

+saad refai And why?

Landon Tiong commented on 02 Jul 2015

Very helpful, thanks!

Mr. Causey commented on 02 Jul 2015

+Landon Tiong You're welcome. Thank you for commenting.

Sophie Maerowitz commented on 12 May 2015

god blesssss i finally understanddddddddddd!!! thank youuuuuu!

Mr. Causey commented on 12 May 2015

+Sophie Maerowitz You're welcome. Thank you for watching and commenting.

Abdullaziz Almaskry commented on 03 Apr 2015

your the best

Mr. Causey commented on 03 Apr 2015

+Abdullaziz Almaskry Thank you so much!

STOICHIOMETRY - Solving Limiting Reactant Problems in Stoichiometry...Easy

User Comments

Elise McAuliffe commented on 11 May 2015

Thank you so much! My teacher this year had a hard time explaining this to the rest of the class, so I will definitely recommend this to them!!

sciencepost commented on 11 May 2015

+Elise McAuliffe Thar is cool to hear! Keep on learning!

Canada2760 commented on 17 Mar 2015

All you need to do is realize that twice the amount of HF is required to react with a particular amount of zinc. if there is more more than twice the amount of HF over Zinc (which there is) it is excess thus Zn is limiting!!! That's it.

sciencepost commented on 18 Mar 2015

+Canada2760  I'm stoked that you are doing Organic and wish i had some vids for you. Yes, its challenging, but that should just require some extra prep. Best wishes and keep being creative with your problem solving.

Canada2760 commented on 17 Mar 2015

+sciencepost I understand where you're coming from but the question simply asks to find limiting reactant which we both did but I did it with far greater simplicity. just finished these types of problems in 11 U chemistry. While I'm on the subject, I'm wondering if organic chemistry is hard or complex? Doing that next year in grade 12 chem.

sciencepost commented on 17 Mar 2015

+Canada2760 LOL. It's a 2 to 1 ratio based on moles, not mass. So the first step is totally needed. Ultimately, my students also need to quantify the mass of the product theoretically so that they can calculate percent yield in the lab. So, it's not as simple as you may think. But hey, thanks for the positive feedback. Best wishes with stoichiometry.

Maria Cabrera commented on 28 Jan 2015

this helped so much! thanks!!!!

sciencepost commented on 28 Jan 2015

+Maria Cabrera Stoichiometry isn't easy. So glad it was helpful! Check out my other stoich videos. //www.youtube.com/playlist?list=PLNc_BreVXbmoiQaQnunBX5CvZL7-aM1XQ

Sigama Bond commented on 20 Jan 2015

Thanks a bunch! I am currently going over MCAT Gen. Chem. material. This video was a great way to brush up on those stoichiometry problems. The best to you :)

sciencepost commented on 21 Jan 2015

+Sigama Bond So cool to hear and best wishes on that big test. Thanks for the feedback.

Kruthika Vetriselvan commented on 10 Nov 2014

Thank you so much! I was having a lot of trouble with this before but your video helped me a lot and it was very simple, thorough, and easy to understand!

sciencepost commented on 10 Nov 2014

+Kru V It's not a surprise that you were having trouble, it is a very difficult concept to grasp. Thanks for tuning in and best wishes in leaning chem!