Limiting Reagent Made Easy: Stoichiometry Tutorial Part 5

This is a whiteboard animation tutorial that demonstrates how to identify the limiting reagent (aka limiting reactant) of a chemical reaction and how to calculate the theoretical yield and percent yield in a limiting reactant stoichiometry problem.
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The limiting reagent (or limiting reactant) is the reactant in a reaction that limits the amount of product that can be made. In order to determine it, you need to calculate the amount of product that each reactant can produce. The reactant that can produce the least amount of product is the limiting reagent, and that least amount of product is the theoretical yield.
In order to determine the limiting reagent and the theoretical yield, you will need to perform multiple stoichiometry calculations (typically at least two grams to grams stoichiometry calculations).
This is the fifth and final tutorial in my stoichiometry series.
My goal is to make chemistry easier ;)
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#chemistry #madeeasy #stoichiometry #ketzbook #tutorial

[@AnissaVictoria]

all 5 parts SAVED my life, i learned more in 40 min from these videos than i did in 2 weeks of class

[@tanisha6060]

This concept cannot be taught in any easier way than this.. Thank you so much..

[@ketzbook]

Happy to help :)

[@serena91108]

Wait, this actually makes sense... *MINDBLOWN*

[@ketzbook]

😊

[@musubarbu5336]

A whole week of class and my professor couldn't teach me this .. it took you 8 MiUNITS! why am I paying tuition .......

[@ketzbook]

to get a degree

[@johnny-smith]

I know that feel.

[@jodycsinexjr8874]

My problem is I have a brilliant Dr. for the lecture portion, then his new TA for the lab portion. One teaches things one way, the other a different way and confuses everyone. I really like the guy, but he does not give you all of the information needed. The good Dr. breaks everything down like this guy. The problem with lab is we are a week or so ahead in lab!

[@jodycsinexjr8874]

Wow! The AH-HA! moment comes easy with your excellent tutorials! Great job! I have a new TA as my lab instructor and he started us with mid-level calculations while only showing one simple reaction and never even mentioned limiting reagent. Now that I have been fully taught everything, stoichiometry is not such a beast! Keep up the great work.

[@vocal01d]

whoa dude. you deserve more subscribers. very helpful and high quality videos. thanks!

[@ketzbook]

Thanks!

[@varadasrivastava7610]

cried for an hour over my chem score for this topic and was like "aite thats it, im gonna do this no matter what" and you're a lifesaver :)))))))))

[@deepanshaadlakha5012]

This is really amazing....now i have started loving this concept...

[@laurimatthews6725]

Excellent video! Thank you for explaining this potentially tricky chemistry concept with such clarity and simplicity. I shared your video with my students.

[@ingridmejia6903]

I am a visual learner and the way you explain is easy to understand. Thank You!☺️

[@ketzbook]

Glad to help!

[@carolynsoderstrom2521]

Your series is excellent for the beginning chemistry student. Thanks for sharing it!

[@ketzbook]

you're welcome!

[@katherinethomson1469]

thank you so much for making all of these videos, just started college chemistry and i was so lost but now i at least get stochiometry!! subscribed

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[@Varde1234]

Mr. Ketz, it’s chris from your chemistry last year. Glad to see how large your channel has grown!

[@ketzbook]

Thanks man! What have you been up to these days?

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[@user-ut5nx6hm9d]

YOU ARE WHY MORE TEACHERS NEED TO WATCH MORE KZbin!! Seriously though if I'd been shown videos like yours years ago classes like physics or chemistry would've been way easier.

[@ketzbook]

they probably will watch more youtube now with the Coronavirus stuff...

[@jorrelherrera6695]

the smore example is brilliant thank you

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[@rikhilaannem6841]

These videos are so amazing!! Please make more videos!!!!!

[@ketzbook]

thanks! will do, but it takes a lot of time

[@rikhilaannem6841]

Hmm... but if you can then please make a video on volumetric analysis in stoichiometry Thanks!

[@anamfatima8212]

Simplest explanation ever......

[@kanochoo1012]

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love you man

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U are the best u helped me alot thank you thank you God bless u I'll get good marks in chemistry because of u thank u

[@ketzbook]

Glad I could help :)

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[@yograjchoudhari3844]

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[@ketzbook]

Welcome!

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Life saver. 😫

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[@ketzbook]

you're welcome!

[@rebeccaarpie9184]

ID:00404 The limiting reagent is the reactant that limits the amount of reactant being formed. As stated in the example, you must find out how much product each reactant can make and then pick the reactant with the lowest number. This is the limiting reagent because after that amount, no more product can be made.

[@MAndy-sw8rb]

Theoretical yield is the reactant that can produce the least amount of product also called "limiting reagent". 00403

[@danez199]

00123, the limiting reagent is what the theoretical yield is based off of because it's the minimum amount of smores that can be made as a result

[@DoplerEffect]

00803] Theoretical yield is based on limiting reagent because the limiting reagent is the reactant that can make the least amount of product, which leaves all else as excess.

[@f3p]

Well I learned two things today. The origin of s’mores and limiting reagenr

[@NJT422]

Thanks

[@christianrothermel6487]

The theoretical yield is based on the limiting reagent, because the limiting reagent is the reactant that will run out first leaving everything else as excess so this means when you run out of the limiting reagent then you have reached your theoretical yield.

[@zach373]

A some fo integrated programs. Please make vidio about equivalent weight also

[@cxcbiologywithmissadams5154]

my chem teacher actually took 2 weeks on this and i understood it in less than 10 min. youtube needs to have a school

[@brookeparker7332]

In excess means to have more than needed or the reactants left over after the product is created, 00214

[@zaeemdaniyal3328]

What if the mass of product or its volume is not given initially in the question?

[@ashleymartinez2466]

In excess is what is left over of the reactants when a reaction takes place and a limiting reagent is formed. 00114

[@0nobody379]

The limiting reagent is the reactant that 'limits' the reaction to a set amount of products because it is entirely exhausted and more is required, of the reactant, to produce more product. 00205

[@luzzacariaz7021]

The reactant the theoretical yield is based on is limiting reagent because the reagent is the reactant that can produce the least amount of product, 00611

[@elianrodriguez6206]

First, you calculate the amount of product each reactant could make. Then, the reactant that makes the smallest amount of product is the limiting reagent, 00824

[@alphatangowhiskey7600]

in excess is the amount of reactants left from after the reaction is over, 00206

[@briehagen1254]

In excess means the amount of reactants that is left after the reaction takes place, 00806

[@Rubester11]

00414, Excess is the amount of reactant that's left after the theoretical yield

[@meganperdue2865]

The theoretical yield is based on the limiting reagent because that is what can make the least amount of product, the theoretical yield is always rhe smallest amount you can use, 00415

[@ariannawilson3058]

The reactant the theoretical yield is based on is Limiting Reagent. This is because the reagent is the reactant that can produce the least amount of product. 00223

[@awwa5170]

but what if actual yeild and % yeild isnt given how will we find actual yeild? for example: ) Zinc and hydrochloric acid react according to the reaction: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g) If 0.30 mol Zn are added to hydrochloric acid containing 0.52 mol of HCl, how many moles of H2 is produced?

[@sierrahfindeison3092]

In excess means that the reactant amount is extra , 00110

[@JewBoiZ96]

00716 the reaction with the lowest product is the limiting reagent.

[@justinalloway1405]

Limiting Reagent is the reactant that limits the product in a reaction 00401

[@tarynwood7017]

the limiting reagent is what is being taken out of the product. (what reactant that you would run out of first) 00224

[@donnyconquest3085]

is how much you can make out of what is given, 00204

[@joeybfitness991]

Excess is the amount of reactant left over from a reaction that was not used 122095

[@daejahjackson-powell7096]

The theoretical yield is based on the limiting reagent because it is always the smallest number you calculate, 00811

[@244244cc]

Limiting reagent is the reactant that produces the least amount of product. It is what makes up the least amount of product, leaving the other reactants in excess. 00405

[@johnkopp780]

The excess is the amount of reactant left after the theoretical yield, 00606

[@Rachel-tm4gq]

More informative.

[@hannahohara5969]

A limiting reagent is a reactant that identifies how much of the product can be made, 00213

[@alexispascual8187]

In excess means having more than the necessary amount needed to create that product. 00818

[@mylezhudson7324]

Base on the smallest amount calculated.

[@oliviaalloway6869]

The Limiting reagent is the reactant that limits the amount of product you can make

[@RYanimayyyyy31]

"In excess" means there is simply too much of something to use all of it for what is being made into. 00814

[@jillianwharton1442]

I can determine the limiting reagent by observing whatever has the LEAST amount of the product, as the marshmallows were in the example in the video, 00724.

[@colehatton9784]

"in excess" means to have more then needed, leftover and unused #008334

[@kirashort1895]

A reactant is in excess if there is some left over after no more products can be made. 00218

[@rebeccamerritt6001]

The theoretical yield is based on the limiting reagent because that is the most amount of product that can be made 00115

[@dylanarmiger6643]

The Limiting is the reactant in a reaction that limits the amount of product that can be made. 50678

[@clairetrimble8439]

Theoretical yield is the amount of product made by the limiting reagent. It's the least amount, 00419

[@reaganlittle6431]

the substance that is gone after the chemical reaction is complete, 00813

[@amycraft6993]

I can determine the limiting reagent by finding the reactant that can make the least amount of product 00108

[@jordin407]

00815: The theoretical yield is based on the limiting reactant

[@lendyfuentes2082]

In excess is what's left from the limited reactants. 00118

[@rhyno17]

Limiting reagent depends on rhetorical yield

[@nickmork]

beauty

[@kasiyahtatem7946]

excess is the greater amount needed for the reaction, 00418

[@sheilaescamilla4767]

The theoretical yield is based on limiting reactant because it produces the least amount of product, 00715

[@jakekart55]

The limiting reactant is the reactant that limits the amount of product formed. 00420

[@tiapersolio322]

The limiting reagent is determined by finding the reactant that can make the least amount of product, 00416

[@aneleruthmosimanegape307]

👍

[@Growing_Your_Game]

limiting raectant

[@fredsterxo]

The limiting reagent is the reaction that can make the least amount of product | 00805 |

[@playballer1]

thank you so much...very helpful but a little to fast haha

[@sierrayeager3613]

excess is the amount of the reactant not used 00422

[@bayleeketterman3620]

the limiting reagent is how much of the product you can make. 00412

[@kaylynndick9344]

The limiting reagent is how much of the product that can be made, 00409.

[@abbyswearer5408]

The reactants that are not used at all after the reaction is done,984311

[@raynelawrence7546]

limiting reagent is how much you can make out of a product, 00812

[@karapowell4359]

The theoretical yield is based on the limiting reactant because it's the amount of product you can make. 00719

[@shawnmitchell7518]

The reactant with the less amount of output, 00816

[@princessjones5185]

A limit caused by a reactant to control the amount of product made, 00209

[@savannahfaulkner5874]

the other amounts needed for a reaction 00410

[@ZioTrickz]

Limiting Reagent is pretty much how much you can make out of the product given. 00821

[@davinperez3194]

what is excess in my own words, and amount that is over what you need.

[@islerdonnesha]

"In excess" means whatever is left after the limiting reagent is gone, 00710

[@rachaelbreneman8572]

its always the smallest amount of product you can calculate, 00703

[@shelovesRH]

reactant that limits the amount of product form

[@shanialenae1008]

Least amount of product used, 00809