Calorimetry: Using q=mΔTc to find Temperature + Example

Hot Iron Bar + Cold Water = Final Temperature?
Use the formula mΔTc = -mΔTc to show that heat gained = heat lost and solve for whatever "x" is. In this case, it's the final temperature.
Check me out: www.chemistnate... !

[@Nick-li8ol]

ty this 7min video helped me more than my 2hour long class U________U

[@The_Chosen_Heretic]

+nickOP I agree!

[@purplepanda7993]

agree

[@saulmunn3710]

same

[@peachypear8765]

for real 😭

[@chemistNATE]

Absolutely. You can carry units throughout the whole thing if you like. I find some students get lost when there are units floating around the linear equation though.

[@paulbuschman8318]

"If you didn't know water was one gram per milliliter, well then. you need to learn yourself something." HI - larious.

[@Palomino0813]

Once more, you've taken an equation that my textbook hopelessly overcomplicated and made it simple, and once more you have my thanks.

[@Im-me504]

dude you saved my life because my chemistry book was confusing the shit out of me with something so simple as this math equations you used.

[@MizJustice]

The way this video just saved my life!! Thank you chemistNate!!!

[@christinamccarthy7659]

Cant thank you enough for doing this example. My prof made this question WAY more difficult than it needed to be and you simplified it making it painless and easy to solve. THANK YOU!!

[@victorialipps7061]

Because of you I will do great on my chem test! Thanks so much!!

[@Texman4268]

FANTASTIC. what a great explanation and thanks for breaking down the steps. Explained it a LOT better than my Physics guide did, that's for sure!!! Thanks again!!!

[@ZeddsWorld]

thank you! this was way more helpful than my physics teachers lecture

[@lindsaykearney5089]

Haha I never realized how weird it is until now, but my chemistry teacher writes the formula as q=mc🔺t and she pronounces it like "q equals mcat" 😂

[@guardado56143]

Same with me, I find it easier to remember

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Lindsay Kearney onlar ne bilsin :D

[@sasamusic27]

haha wow that’s so funny man 😂

[@justynsc96]

9 equals mcat is a good mnemonic if you are studying for the MCAT exam, which requires you to know this equation ;)

[@MK_BABE]

lol

[@juandelacruzv3722]

Who else has finals tomorrow....? :)

[@jennahaor0244]

today >.

[@truedarkness4052]

Yep

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SAME

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Me

[@eduardomenchaca1916]

Me tomorrow 😂

[@chr7688]

Thank you so much for this video. I've just spent 3 hours trying to solve a problem that you made simple in 6 minutes. Completely different than all the other examples out there but finally, logic I can understand!

[@The_Chosen_Heretic]

+ch r I've been spending roughly 6 hours on mine!

[@rosemarydelgrosso8685]

I just wanted to say thank you so much for this video. My teacher gave the worst clues on how to solve a problem like this one so I am truly grateful to you.

[@oskarkristinsson6517]

thank you i've been up for to long trying to find a good explanation you're a life saver.

[@clairetellkamp6253]

Bro, i love you. You're the only one I could find who answered this.

[@j0kokoh]

How would you solve an more complex problem involving 3 masses and 3 specific heat capacities asking for mass? e.g ice dropped in a glass of water

[@scottsibley561]

Did you ever find out how to complete these? I'd appreciate some resources on how these are done.

[@sliderulelover]

Very well presented. Kudos to your teaching technique. You also anticipated student's questions as you went along. Well done!

[@sicilianotoronto]

Thank you! I tried this tonight but the Chem text was making the math so difficult to solve! You make it much easier!

[@alonator09]

OMG, made sooo simple! thank you so so much! bless you

[@dayneornelas296]

bless youuuuuuu!!! your "you need to learn something" comment made my night of chemheartache lol

[@FranciscoGarcia-jy9rn]

thank you so much, I am reviewing for a final exam and this is helping me out.

[@Emily-xs8um]

OMG! Thank you so much! You helped me so much. I have been struggling with this concept for days!!!!!

[@whitneyxox4u]

you have no idea how much this just helped me!!! thank you tremendously !!!!

[@SquiggleWyrm]

How would you do this if there were three components? But two of them have the same change in temp. EX. 80 degree Copper dropped into 30 degree Celsius water held in 30 degree Celsius cup

[@FHO72]

I love your videos. It's always so simple and straight forward. Thanks for making it easy for us struggling chemistry students. PS. MAKE MORE VIDEOS

[@megagodofwar23]

not being a troll or anything, but why did you use 70 grams if the problem had milliliters for water.

[@CrayEditz]

is the x in the answer the final temperature to the iron to the water?

[@connorgoff3740]

This video was the only one that solved my question...thanks!

[@triheatout6116]

compute the amount of heat needed to drop the temperature of 100cans of milk from 32c to 25c , assume specific weight of milk to be .99kg/L. specific heat of milk is .93 BTU/lb F. can you help me with this

[@ellieb4306]

Why isn't the Ms 80g? I thought you're supposed to add both masses?

[@ameehasa5504]

Sir I have question I want to mixed one gallon water at 10 degree how much can I add hot water at 40 degree to get water at 30 degree ?

[@maddisonreeve2896]

How do you know what should be - and + for the initial plugging in of information? Is water endothermic?? Not quite sure what is going on with this part.

[@nascar12141]

Does it matter which - sign you put, either on iron or water? for q=-q... Either way result is the same, but is there any actual assignment of the negative sign?

[@kaden56]

finally figured it out now that's it's 12:30 am thanks to your video! Thank you!

[@flowerbased]

Is this the same as doing 2 seperate "q" formulas? I think this is how my teacher taught us for a constant calorimetry.

[@christinamccarthy7659]

Do you have other examples of these types of Calorimetry problems? If so, can you direct me to the link? I would greatly appreciate viewing a few more of these.

[@ABWBackyardWrestling]

This helped so much you have no idea. Thank you so much!

[@ignacioaguilarluna3697]

How can u find mass with this formula.....I really need it plz help

[@julesg6602]

10/10 Would solve again

[@Madpainter88]

SAVED MY LIFE! i have been trying to figure this out for ages and my text book is shit!. Sir, you earned yourself a sub! ily

[@mrswhiteschemistry4934]

Thanks for posting this. I found it helpful and will use it with my students.

[@luisambriz4673]

if you combined like terms why is there only one x in the end?

[@nickkoryukin4949]

At 2:12-2:15 did you mean 70mL or what you wrote??

[@dasherman5150]

Good video. Thanks. I'd suggest dividing both sides of the linear equation by -4.6 as a second step though. It makes the numbers more manageable with only 'x-80' remaining on the right side.

[@Kimorawaytocuteforyou]

I am not understanding how you came up with the specific heat for iron. is that given??

[@Christian-Espinoza]

***** well you can solve for them, that is assuming that all other variables are given.

[@HanSoloxcs]

This just made a lot click for me. Thank you ChemistNate!

[@aaronrapp4120]

BOOM! Nicely done best of luck

[@mrswhiteschemistry4934]

I'm just starting a youtube channel to help my students. I love your explanation. What do I tell them about dropping the units during the workup? Do they actually cancel out as it progresses?

[@jackpodlasek9183]

i fucking love u @chemistNATE

[@irenetinnirello7396]

does it matter that he didnt carry over the mL?? we started with the volume of water not the mass.

[@4Yiger]

Thank you so much! I was so confused with my chem homework until I watched your video.

[@jrzrd411]

Wouldnt the units cancel? So you would have joules?

[@normaeunicechavarria6191]

Thank you !!! I used this for a two part equation were the initial for the second part was the final for from my first part !!! Work out perfectly!!

[@azizsaleh7508]

Thanks alot man, been around this equation for an hour ...

[@MaryBethUS]

Thank you!! Probably still going to fail my lab finals, but at least I'll get this problem correct.

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Small world!

[@jakelennon8999]

Indeed...

[@joycedjikeng4825]

are you Canadian???????

[@stephens2663]

You're the man... I finally understand this!!! Thank you for making this!

[@cristianacosta8656]

Why did the -4.6 turn positive when he moved it to the other side??

[@koalasandfries]

this is awesome thank you Nate!! A way more simplified version to what I learned.

[@migbasketballer]

Thank you so much for posting this video! I have a test on this in two days and this helped me so much!!!! Thank you.

[@suffixable]

Why won't volume of water rise. Why is work done not looked?

[@natpat7683]

This was so helpful . I am forever grateful.

[@bruhhh6950]

So where did the 50 come from?

[@jamesgibbons8855]

Very very helpful!!! Thank you so much for taking the time to do this!

[@renrenx3328]

You made me love algebra! Thank you so much

[@sarahescamilla8417]

There is absolutely nothing simple about this. Why are 9th graders learning this??? They are so stressed out and so am I! I am in tears!!

[@chemistNATE]

9th grade !? This is done in Grade 12 Chemistry in Ontario, Canada Perhaps your Grade 9 teacher thinks it’s easy because “it’s just one formula” …

[@philbutthead]

In order to solve it this way you need two specific heat capacity for both metals. In some tests you only have one. So you solve the formula first, and then plug the numbers instead of plugging the numbers and solving for x.

[@acerhaelcaputolan7879]

what happend to d units sir? 70ml? to 70 g? is that okay or ??

[@ashley3556]

1 mL of water = 1 gram of water... Did you not hear what he said or???

[@spiralwizards]

density of water is 1g/cm3 1cm3=1ml so 1ml=1g of pure water

[@ameehasa5504]

Water one gallon at 10 degree I have hot water at 40 degree the question the quantity of hot water I need to add to get 30 degree

[@AndreaMercado13]

You are an amazing teacher!

[@insane204]

thank you so much for making this video and making it so simple ive been trying to learn this the whole day and with your video i can finally understand it thx a lot

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[@bodhi6481]

Thank you! SO much easier than I thought

[@jerrykallang8632]

Hello can anyone help me with this question, "Determine the temperature of water at a state of P=600kPa and h= 2910Kj/kg"

[@pvp.ginger1473]

Where did u get the 0.46 j/gc from ????!

[@olliefearfield8346]

Google. It's just the accepted measurement for the Specific Heat Capacity of Iron, which is how much heat is needed to raise the temperature of 1 gram of a substance (iron) 1 degree Celsius

[@nike12385]

How do you know when to use negative and positive equations?

[@marlenealvarado9964]

You place the negative sign to the substance that is losing heat/energy. In this case the iron was "hotter" at 80degCelsius or had higher kinetic energy. Heat by definition is a form of energy that transfers from a system of higher kinetic energy to a system of lower kinetic energy. Consequently, in this example the iron lost the energy and the water absorbed this energy. Therefore, the negative sign indicates the substance that is losing energy.

[@ChrisBranleh]

Great! this helped drastically in my chemistry II class.

[@seanbyrnes6789]

This was extremely helpful!! Thank you very much!!

[@yhelgacutan1558]

where'd you get 4.184 Sir?

[@sweethoodlove]

The heat capacity of water

[@melvinvasquez8518]

Thanks! CHEM 121 final tomorrow. This looks way harder in my textbook when you are casually glancing through; lol.

[@ghxstman9128]

why are you using volume for mass?

[@warrenfranklin6173]

if you mean the water volume, it's a simple conversion: 1g of water equals 1mL of water.

[@KielyClan]

where does the 50 come from?

[@MsPichuMaster]

Finally someone who speaks English! Want to become my engineering buddy? hehe

[@katierobey-bhamani4435]

idk why but this hella made me laugh. but thanks I needed a memory refresher on this before my test tomorrow

[@Manishh95]

love the videos, you'd be a great teacher sir

[@Erikola18]

Thanks man you're a lifesaver!

[@hmwhatsthisabout]

PLEASE MAKE A VIDEO ON ORGANIC CHEM EXAMPLE PROBLEMS

[@shindo567]

omg i have a test on this tomorrow! youre amazing haha, i know ill do better now

[@Chupabrah]

I think the REAL question here is are Maria, Romana and Andrea gonna tripple team this dudes beaker & show him the the practical aspect behind heat exchange between different bodies.

[@slg4567]

Literally just saved my life!!! yessss Thank youu

[@imranwahabi3351]

helped me soo much bro thanks

[@Wolfstar26]

awesome teaching! my final is today and i didn't have time to study as i had a final yesterday as well. hopefully i pass lmao

[@chemistNATE]

Not that I'm aware of. Good question though.

[@LuisMartinez-rg5tr]

Thanks a ton. This was pretty helpful!

[@Epia92]

what if you were asked to find the final temperature of just water

[@kvs7983]

Ovovwero Epia same

[@kaitlinj5887]

I understood this better in a 7 minute video than I did a two day lecture

[@chelseaswan316]

Thank you so much!!!! This was so helpful to me!

[@TheLeather13]

What about significant figures?

[@anamixay4345]

How do you get .46 J/gC

[@johnmcnash9174]

Thank you so much this video was a life saver