Concentration and Molarity: The Key to Chemical Solutions

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Concentration and Molarity. Mr. Causey discusses solutions, dilutions, and concentration. Mr. Causey shows you how to perform molarity calculations and use molarity to create specific dilutions.
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Molarity - 2:38
Dilutions - 5:32
ABOUT MR. CAUSEY'S VIDEO ACADEMY
Mr. Causey's Video Academy is an educational video series of short video lessons for chemistry, algebra and physics. You can get lessons on a variety of topics or homework helpers that show you how to solve certain problems. There are over 120 videos to choose from.
CONTACT ME:
mrcausey58@gmail.com
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Polyatomic Ion Cheat Sheet:
www.darrellcausey.com/mrcausey...
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Mr. Causey discusses solutions, dilutions, and concentration. Mr. Causey shows you how to perform molarity calculations and how to use molarity to create specific dilutions. Solutions are homogeneous mixtures of a solute in a solvent. Concentration is the amount of solute per solvent or solution. Molarity is moles of solute per liter of solution.
#mrcausey #yourchemcoach #molarity

Опубликовано:

26 июл 2024

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Комментарии : 202

@idcemail123 6 лет назад

Great explanation. The Dilution explanation nailed it for me thanks a lot.

@mrcausey 6 лет назад

You're welcome. Thank you so much for taking the time to comment. It is greatly appreciated.

@laurancehagan3338 9 лет назад

This was pretty helpful. It probably would have been better to watch it sooner than the night before my chemistry test but...c'est la vie

@mariahsearle5692 6 лет назад

Laurance Hagan me rn😭😂

@alchemists4443 5 лет назад

M eee

@ddeul6551 4 месяца назад

The cycle continues

@TaylorGabaldon 9 лет назад

Probably the most professional educational video I've every watched. 10/10 would recommend!

@captainvhagar9953 10 лет назад

Amazing video For the first time someone explained the calculations so clearly. Thank you, Mr. Causey!

@wynstontacheny9639 9 лет назад

In the dilution example he kept saying V1 would be how much water you would need to add. That volume is actually the volume of the 18M solution that you would need to remove to add water to until you reached the 3.0 L At the end when he finished the calculations he did restate it that way, but it was a bit confusing because before he said it was how much water you needed to add. He got it right in the end, but the inconsistency made it harder to understand.

@finziefiasco 10 лет назад

Amazing! Very straightforward! Thanks!

@woojoonsong5448 10 лет назад

Thank you Mr. Causey Your video helps me a lot to take chemistry class in school!

@SeichoBlossom 10 лет назад

Omg, thank you! Lmao @ "plug and chug dat" :') Lmfao I was about to cry cause I didn't get molarity. And you were the only channel who didn't just GIVE the moles/gram, you actually gave every formula to get to the next step. Thanks alot.

@mrcausey 10 лет назад

You're welcome. Thanks for the feedback.

@nakatokaren505 3 года назад

8 years later and this is very much useful. Thanks

@mrcausey 3 года назад

You're welcome. Thank you for watching and commenting.

@helenraine594 8 лет назад

I'm really struggling in this area for my exam in less than 2 weeks. This helps thank you.

@ramaniramanijamal0128 8 лет назад

I have be so confused on how to calculate but now that I watch this video everything have become simple I say God bless u for your hard work

@diennawillis7676 4 года назад

This video did a great explanation from start to finish!

@mrcausey 4 года назад

Thank you so much for the kind comment.

@timothydanieljayson6925 9 лет назад

THANK YOU! THANK YOU SO MUCH! Thanks to you I could probably pass my midterm in chemistry!! May God bless you!! :)

@xx2ol753 6 лет назад

Clyde Walker how old r u

@schmoovin2915 6 лет назад

i are 12

@soccerismylife514 11 лет назад

you help me understanddd so much better!

@camblank6283 6 лет назад

You realy help me. And I understand from you much more than my Instructor.

@mrcausey 6 лет назад

Thank you for watching and commenting.

@mohammedhafeez1493 7 лет назад

Amazing explanation!

@nditoxin 11 лет назад

God Bless you Mr Causey !!!!

@ellesrevisionsession 8 лет назад

Nice break down. Thanks

@sugams2s 10 лет назад

Aaaaaaand Subscribed!

@garikatabecco 6 лет назад

Wow! I'm nothing to do with chemistry and just got to know what is molarity and that it's not the same with molecular weight! But now I understand how to do that! Thank you so much! Syperb lesson!

@mrcausey 6 лет назад

You're welcome. Thank you so much for taking the time to comment. It is greatly appreciated.

@rchavez5184 8 лет назад

To the blackboard! Thank you for helping and taking the time to make this video easy and understandable for everyone!

@mrcausey 8 лет назад

+R Chavez You're welcome. Thank you for taking the time to comment.

@ALittleBitOfHotchPotch 8 лет назад

Thankyou this was really helpful 👍

@iraqiman1854 10 лет назад

Mr.Causy you are great, keep doing more videos, i like your way of explanation

@markkeith9055 7 лет назад

I used to have trouble finding the solution to solutions until I figured out the solutions to a solution. Solute!!

@dannicatherine324 8 лет назад

You are literally the best 😭😭😭

@ChanhNguyen-ye1tf 11 лет назад

thank you so much!!

@jfaparra5803 9 лет назад

It helped me review my Chemistry. Thank you Mr. Causey! :D

@mrcausey 9 лет назад

JF Aparra You're welcome. Thank you for watching and commenting.

@moisesvargas635 10 лет назад

Very good, you help me a lot, thank you very much

@marcusandersson2990 8 лет назад

thanks this really helped, please keep doing these

@EstefaniaD1029 10 лет назад

Thank you, It really helped me a lot! =)

@dineshrai2658 7 лет назад

very nice sir......... thank u soo soo much for making video for us.......

@juanitaarbelo5409 9 лет назад

Thanx so much, You have helped me a lot!

@akshintl5025 6 лет назад

god bless u.... gr8 explanation love n respect from India

@mrcausey 6 лет назад

Thank you so much!

@gabriellobo3456 7 лет назад

Thank you Mr. Causey

@mrcausey 7 лет назад

You're welcome!

@blackhawkX02 7 лет назад

Yeah, practice people, if you don't do that, you'll be here like me, watching this shit over and over and over even if it's not that complicated because you will forget it over and over IF you don't practice...

@ravindramalusare2383 9 лет назад

Sir , when you do dilution what exactly changes ? moles of solute remain same ,so concentration of what decreases ,and please clarify whats concentration

@lihkin1000 10 лет назад

this video actually really helped...

@tsvietochek 10 лет назад

Mr. Causey, thank you sooo much for the video, your explanation is so clear and practical! You can't imagine what i went through in my school trying to solve problems with dilution. Thank you

@mrcausey 10 лет назад

You're welcome. Thank you for the great feedback!

@0016mohit 11 лет назад

thank you VEry much :) !!

@syafiqhariz13 10 лет назад

I have a question Mr.Causy. A 15.00ml of potassium nitrate was diluted to 125.0 mol and 25.00ml of this solution were then diluted to 1.000 X 10^3 ml. The concentration of the final solution is 0.00383 M. Calculate the concentration of the original solution.

@ONExANDxONLY 6 лет назад

Thanks a lot, saved about 4 hours time. made things so simple.

@mrcausey 6 лет назад

You're welcome! Thank you so much for watching.

@Gigibean7 8 лет назад

This video helped me so much!!!!!! Thank you very very much.

@mrcausey 8 лет назад

+Gianna You're welcome!

@JihadAlAnsari 8 лет назад

Thank you this is awesome

@mrcausey 8 лет назад

You're welcome. Thank you for watching.

@GravesMRA 7 лет назад

This really happened me out. It also helped that you sound like Marty McFly a lil bit and I love Back To The Future.

@mrcausey 7 лет назад

Thank you for the comment. BTW Marty sounds like me.

@dineshrai2658 7 лет назад

thankss for reply sir....... u r soo good

@lilnoot7335 8 лет назад

thank you so much this helped me a tremendous amount!

@mrcausey 8 лет назад

+Emily Filaseta You're welcome. Thank you for watching and commenting.

@stephengevanni8315 7 лет назад

Thank you so so much!!! The only thing I don't seem to understand is why you have the same number of moles of solute in both solutions. Can you please explain the M1V1=M2V2 part? Thank you!

@baqirqadri6752 8 лет назад

thanx for this vid helped with my science test

@123lebornjames 9 лет назад

much love thank you!

@mrcausey 9 лет назад

You're welcome! Thank you for watching!

@irfanmalik-cu3db 6 лет назад

Very nice sir thanks a lot!

@mrcausey 6 лет назад

irfan malik You're welcome!

@FounderPilot 8 лет назад

Thank you Mr Causey! You are such a great teacher! ":)

@mrcausey 8 лет назад

+Serene Amour Thank you for taking the time to comment. It is very much appreciated.

@infiniworls8340 10 лет назад

thank u! :)

@ComandaKronikk 7 лет назад

Thanks Mr Causey! You tha man!

@mrcausey 7 лет назад

You're welcome. Thank you for watching and commenting.

@hajarqaid 8 лет назад

thank you so much

@mrcausey 8 лет назад

+Hajar Qaid You're welcome!

@bkpandey7191 2 года назад

Hello sir, I want to ask you a question. Basically this question is not from this topic but I'm having problem in this question. The question says, The mole fraction of a soluble in a solution is 0.1. At 298K, molarity of this solution is the same as its molality. Density of this solution at 298K is 2.0g cm^-3 . The ratio of the molecular weights of the solute and solvent , {MW of solute}/{MW of solvent} is.

@mehdee3415 8 лет назад

Thanks a ton !

@mrcausey 8 лет назад

+Mehedi Hasan You're Welcome.

@panico5872 6 лет назад

Than you for the great explanation!! You just saved me

@mrcausey 6 лет назад

You're welcome! Thank you so much for watching.

@RainbowEssence-c3w 6 лет назад

Thanks for this video, it's very helpful! I am a bit confused though, when you dilute something are you not increasing the volume by adding more solvent? So shouldn't M1 not equal M2, since their volumes would be different after you dilute M1 into M2?

@mrcausey 6 лет назад

You're right M1 doesn't equal M2. M1V1 = M2V2 Thanks for watching.

@lolhoney123 7 лет назад

Mr. Causey may i please get some help. i used your method and i understood it but in this question... 9 g of glucose (C6H12O6, RMM = 180 gmol-1) is dissolved in 50 ml of water. This solution is then added to 100 ml of water to give Solution A. 10 ml of Solution A is added to 90 ml of water to give Solution B. What is the final concentration of glucose in Solution B? ...i struggled and couldn't get the answer right. (by the way it the answer is 33mM) please help me.

@jackleek3916 11 лет назад

Thanks

@bvenkat8660 5 лет назад

Which book refer to learn molarity and another solution conc

@yathatisgood 9 лет назад

Hi there. I want to dilute sodium hypochlorite 5%/1litre to 1.5%/1litre but I m struggling with the maths. Could you please write down your workings I think the answer is 4 parts water and 1part sodium hypochlorite Kind regards Steve

@dineshrai2658 7 лет назад

again........ thánkss a lotttt

@mrcausey 7 лет назад

You're welcome.

@anushkakumari8010 3 года назад

Like from India 😍😍

@nodyesmail2915 7 лет назад

if you please, can you explain how to detect acidic and basic radicals ?

@chuchi5020 10 лет назад

hi...can you please teach me how to solve molarity given the percent by mass of solute and density of solution?...thanks.

@mototsumi 7 лет назад

have a question to answer calculate the concentrstion of caffine in the two samples however i only have grams for the known so am unsure as to what to do

@mrcausey 7 лет назад

The amount of solute doesn't change usually in a dilution the amount of solvent does.

@phoenixplayz5071 11 месяцев назад

tq for your help

@mrcausey 11 месяцев назад

You're welcome! Thank you for watching!

@honestmujahid 7 лет назад

Can have a normality problems sir

@jeraldsalvana4245 8 лет назад

how to solve this? mr causey? what weight of limestone containing 23.0%(w/w) Ca must be taken in order to have 750mg of Ca present?

@gittapeggy9726 8 лет назад

OMG you are amazing

@mrcausey 8 лет назад

Thank you so much for watching and the kind comment.

@brittanyolson8532 10 лет назад

Hi, I need help with a question and am having a hard time finding a similar example online. I would really appreciate some help, or at least a bit of a direction. I have solved for the molarity of the NaCl solution, but not sure where to go from here. Thanks! A student dissolves 1.246 g of sodium chloride into 500.0 ml of water. That solution is then mixed with 300.0 ml of a 0.100 M sodium carbonate solution. What is the concentration of sodium ions in the final (mixed) solution.

@mrcausey 10 лет назад

Try M1V1=M2V2

@lepetite7332 8 лет назад

I want to ask something. supposed I want to make a phosphate solution form KH2PO4 anhydrous. to a phosphate solution of 300mg/L should I just ad 0.3 gram of KH2PO4 into a liter of DI water or I have to do some calculation?

@mrcausey 8 лет назад

If you are considering the phosphate only, remember the phosphate is only about 70% of the mass. Thus, you must calculate how much KH2PO4 would contain .300 g of PO4.

@CB-cx8ty 10 лет назад

Mr Causey, You are an awesome teacher! I will follow you from this day forward! C :)

@MrVcmafira 5 лет назад

Thank you

@mrcausey 5 лет назад

You're welcome!

@zakmatew 9 лет назад

How would I dilute 6% of NaClO to 0.005% NaClO? Should I use the same formula you gave here?

@mrcausey 9 лет назад

Zak Matew It is similar but deals with percent by mass not molarity.

@Alex-jk9pq 6 лет назад

Thanks fam

@mrcausey 6 лет назад

You're welcome! Thank you so much for watching.

@Mendorich1 7 лет назад

I have a chem question. How would you determine which solution has higher concentration for example. 200.mL of 1.50 M NaCl solution And 150. mL of solution containing 24.0 g of NaCl

@mrcausey 7 лет назад

Change the 150 ml to liters, then change the 24.0 g to moles and divide the moles by the liters.

@cabdixakiimaxmed4546 7 лет назад

excellent

@mrcausey 7 лет назад

Thank you!

@tastytunaroll2784 8 лет назад

Do you sell Mr. Causey shirts

@christinesoberano7134 10 лет назад

Do you have any videos on how to calculate molality? I really need it! Please help me!

@superAmaster 10 лет назад

RU-vid is great place.

@sameermkaladagi9977 5 лет назад

Calculate the molarity solution of methanol in 1 litre of water in which of the mole fraction of methanol is 0.5

@vandam7656 3 года назад

What word were written on the display which viewed by viewers is obsecure what transprance under which calculation were done under

@nicholasrowe771 9 лет назад

muy bien

@rabiusalihu3097 6 лет назад

Perfect

@mrcausey 6 лет назад

Thank you.

@mxddy_goofy 3 года назад

thx u

@mrcausey 3 года назад

You're welcome.

@johncook9331 8 лет назад

scientist have quantitative terms quantitative means measurable but in what terms

@denisskenderovic3707 8 лет назад

I have an issue. How do I calculate the concentration of ions specifically ? The problem says "Calculate the molarity of all ions in a solution of barium-hydroxide, which has a molarity of 0.01mol/dm3. It's a full dissociation". Please help me :( .

@mrcausey 8 лет назад

+Denis Skenderović The equation would be Ba(OH)2 ---> Ba 2+ + 2 OH - The ratio would be 1:1:2 Thus .01 M Ba(OH)2 will dissociate into .01 M Ba 2+ and .02 M OH-

@denisskenderovic3707 8 лет назад

Oh, THANK you ! I must say I didn't really expect such a quick respond, but I'm positively surprised. This helped me deal with a lot of equations similar to this one. Thank you a thousand times Mr. Causey ! :)

@h00015788 8 лет назад

thanks

@mrcausey 8 лет назад

+ibrahim ali You're welcome.

@Vitality_Chiropractic 7 лет назад

How does Avagadro's number fit into all of this??

@mrcausey 7 лет назад

Well, molarity is based on moles per liter and the mole is any Avogadro's number of something.

@shonithraj5383 10 лет назад

can you please make videos on molality, normality and other concepts involved in concentration.

@mrcausey 10 лет назад

Those topics are coming soon.

@shonithraj5383 10 лет назад

thank you

@mrcausey 10 лет назад

Molality is up.

@shonithraj5383 10 лет назад

Mr. Causey thank you

@cookiezncreme9473 7 лет назад

You already know who this is

@gc8596 5 лет назад

Nice video. Also you sound like Marty mcfly 😁

@mrcausey 5 лет назад

Thank you for watching and commenting. Marty McFly sounds like me.

@fernandogonzalez9766 5 лет назад

what i couldnt learn in 3 weeks i just learned it in 10 minutes

@mrcausey 5 лет назад

Thank you for commenting!

@dineshrai2658 7 лет назад

sir....... where r u from???

@mrcausey 7 лет назад

The United States. Texas.

@shennonfernando8236 8 лет назад

do your calculations slowly plz

@sergiocartagena6634 9 лет назад

How many grams of NaOH are needed to prepare 3.500L of a solution that is 0.250M? Plz help me!!!!

@WhatchaTakinBout 9 лет назад

Sergio Cartagena 34.99grams of NaOH

@sergiocartagena6634 9 лет назад

WhatchaTakinBout thanks"but i already failed this chapter.

@abdallatalhamy8025 8 лет назад

How I can solve this? :how would you dilute the 6.0 M Nitric acid in order to get 400 mL 2.5 M nitric acid solution ??

@mrcausey 8 лет назад

+abdalla Talhme M1V1 = M2V2 change the 400 mL to .400 L and get (6 M) V = (2.5 M) (.4 L) V = (2.5 x .4)/6 V = .167 L or 167 mL Start with 167 mL and add water to 400 mL

@abdallatalhamy8025 8 лет назад

+Mr. Causey thank you

@Punsmash 8 лет назад

How would i solve this? calculate the molarity of a solution prepared by dissolving 28.8 g of sodium hydroxide in water to make 500ml of solution

@mrcausey 8 лет назад

+Sarah Nemetalla Well, remember that molarity is moles of solute per liters of solution. Thus, you must change the grams to moles using molar mass and then divide the moles by .500 L. The molar mass of NaOH is 40 g per mole.

@Punsmash 8 лет назад

+Mr. Causey Oohhh i kept diving by 500ml and getting a weird answer. Thank you so much youre the best!

@mrcausey 8 лет назад

+Sarah Nemetalla You're welcome.