Molarity Practice Problems
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- Опубліковано 21 сер 2024
- This chemistry video tutorial explains how to solve common molarity problems. It discusses how to calculate the concentration of a solution given the mass in grams, given moles and volume in Liters, given grams and mL of solution, and how to find the molarity given the density and volume of the solution. This video contains plenty of examples and practice problems.
Stoichiometry Practice Test:
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Solute, Solvent, & Solution:
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Strong & Weak Electrolytes:
• Identifying Strong Ele...
Molarity Practice Problems:
• Molarity Practice Prob...
Ion Concentration In Solutions:
• Ion Concentration in S...
Dilution Problems:
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Types of Chemical Reactions:
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Solubility Rules:
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Predicting The Products of Reactions:
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Activity Series of Metals:
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Will This Reaction Occur?
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Double Replacement Reactions:
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Net Ionic Equations:
• Precipitation Reaction...
Writing Chemical Equations From Words:
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Solution Stoichiometry:
• Solution Stoichiometry...
Molarity & Dilution Problems:
• Molarity Dilution Prob...
Acid Base Neutralization Reactions:
• Acid Base Neutralizati...
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Acid Base Titration Problems:
• Acid Base Titration Pr...
Mixture Problems:
• Mixture Problems
Calculating Oxidation Numbers:
• How To Calculate Oxida...
Oxidation and Reduction Reactions:
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Balancing Redox Reactions:
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Ideal Gas Law Problems:
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His back doesn't even hurt from carrying so many students GPAs absolute legend
who else here the night before your chem test
Yeah
defiinitely me.
Yep
I'm here 20 min before an exam
Lol me 😂
Struggling for two weeks with this, you cleared it in 20 minutes, thank you!!!!! Please don’t stop helping students all over the world, the hero we need and don’t deserve !!
u are literally my teacher for the rest of the quarantine year
Can you please tell me about more UA-cam channel of chemistry
@@thechemicalcircuit try khan academy, professor dave explains
@@thestudiousguy5252 thank you dear
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I feel like this channel should get a Nobel Peace Prize
taught me more in 20 minutes than my teacher did this entire semester
Jan Wechsler facts
Lol yes
Hhhh
Same dude... Something about youtube becoming a better education platform than actual schools is unsettling though.
Because you weren't paying attention. I literally do this exact same thing in the class and kids bitch and bitch. I say desired on top, cancelled on the bottom. Molarity is mols per liter and you can use it as a conversion factor. I give them mol maps to show them EXACTLY what to do. You don't pay attention.
I am so proud I solved all of the problems here myself! I know it's not that hard to a lot of people, but this is a huge thing for me as I struggle with Chemistry.
You are the reason why my Chem grade is 93%. Thank You!!!!
How’d it go in chem last year
Every talkin about how this saved them in college Chem and I’m over here crying cuz I’m in 9th grade
10th here and struggling for real
Same bro, I'm struggling.
@@adamkarakira6486 lol im in 7th
I feel you, im also taking college chem in 9th grade
Yep, same bro, I'm also in 9th. And, this is actually NOT in our syllabus, but... Meh, sounds fun.
Your a godsend 🥺I had no idea what my instructor was trying to tell me for 2 weeks and you helped me understand in 20 minutes
The Organic Chemistry Tutor, you are the best!!! I will not forget you when I graduate in the future! :)
You make chemistry so easy ton understand. your videos are concise yet still cover all the specifics. I thank you with my entire heart, sincerely, a chemistry 110 student =,)
Thank you! I have an exam tomorrow and doing these problems and then checking with you how you solved it really helped. Keep up the great work.
Hhhh
Good to see people been doing this for four years😂
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night before my chem test !! let's so this
The best Chemistry tutor i have ever met 😊❤
Your channel has helped me catch up with the lessons I missed! Thank you so much! 💖
what’s sad is that this is supposed to be the easiest part of my test today 💀
Who else is here the morning of your chemistry test
did ya. pass
Me and it’s not gonna go well😂
@@braxtonantonelli8632 did u pass
Professor Organic Chemistry Tutor, thank you for a step-by-step analysis of Molarity Practice Problems in AP/General Chemistry. The practice problems are an excellent way to fully learn about molarity problems in Chemistry. This is an error free video/lecture on UA-cam TV with the Organic Chemistry Tutor.
I got finals coming up in two days and these videos are great! Thank you 😊
Helpful in this pandemic times where teachers can't conduct their lessons face to face and students tend to self study. I'm learning a lot from this video. Thank's for sharing, helping and teaching.
Thank you so much this video helped so much. Ive been struggling and very confused in hon chem lately.
this video is literally the only reason i passed chem
Thank you so much. I didn’t even understand this till you taught me. Thanks!!!
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Evereytime the answer comes my mind got mind blown, its like a magic to me.. hahaha
TY bro i was stuck in ISS this whole week while we were learning this and missed EVERYTHING thanks for the help
How’d it go two years ago
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Yet again TOCT coming in for the clutch 2 days before the exam! Idk what I would do without you brother.
You are absolutely amazing!!! Thank you for explaining this so easily!!! Time for my chem exam
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could we have a degree in watching these kinds of videos?
Probably
I like this video because you broke down molarity with beautiful examples
I have chemistry tech exam in four days and you’re my only hope
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THANK YOUUUUU THIS WILL HELP ME FOR OUR EXAMS TOMORROWWWWW
so so so helpful especially for the MCAT thank you so much!!!
How’d the MCAT go
This is more usefull than my teachers 1 hour lesson
I have a test in 10 minutes,I haven’t payed attention in chem, I hope this video saves me 😭
Excellent video, much praise and thanks for the work you do.
At around the 11:30 mark, why is that we use only use sulfate ions in our final answer and not Aluminum when the question asks for both Aluminum ions and Sulfate ions?
So typing this question helped me realize the answer to my question.
You were giving us an example of how to show our work if we had too.
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Bruh why our teachers cant teach like this??
Very nice sir. I am very thankful because of u this concept was clear.
U teach better than my chem teacher
Mark Wahlberg does the best chem videos
How did he find/set up the equation at 19:02? knowing could really help me understand
It's dimensional analysis. Basically, grams in the bottom cancel with grams at the top. You could set up the conversion factor in such a way that it gives you the result in the desired units.
Bro why are you so awesome! saving lives and grades.
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Gonna rewatch this for sure
This man and audiobooks is the only way I’m passing highschool
3 days before my test. I got everything else except these molarity and molality formulas.
was here since my AnaChem days, now I'm on our Clinical Chem so here I am, back with this legend (coz I cant remember shit from anachem haha)
Actually fucking carrying me through chem this year
Bout to get a 100 on this chem test trust
Thank you very much sir you are the goat
I get a bit confused by these different steps. Sometimes it says x before something but instead you divide by it. Sometimes there is a divided by but you multiply. Is there any video that explains the process more thoroughly, like explaining why you (as in around 8:50) start with 50 ml / 1 rather than just 50 ml. Many of these little things seem odd to me. It would be great with a video that explains the framework in detail in order to remember it all more easily.
There is slight inaccuracy in problem 2. 50 mL ethanol + 400 mL water is not 450 mL solution. Ethanol has smaller molecules than water so when they are mixed ethanol occupies the space left by water molecules.
Unit. Measure. Broken units. Mole per litre. Unit of molar concentration.
15 mins before my final you might just save me
Your teaching is too good thanks for making this video
literally such a life saver!!!
I know this isn't a huge deal but be careful with the placement of the signs for the charges. At 10:56, I was a little confused for a sec!!! Great video!!!
@15:20 cannot we find molarity of the solution and multiply it with the subscript (which is three for chlorine here,) like in the previous question to this we did when the molarity of the salt was given and concentration of ions were asked and we did the calculations the same way.
Watching this an hour before my final ❤❤❤
Same
Who else here the night before the Chem test
Thank you. I'm so glad I came across this channel. I feel better and more confident now. Thanks and God bless you.
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Hello! correct me if I'm worng but in No. 1 (c) isn't 700 mg supposed to be converted to grams? I'm sorry, I didn't use the traditional dimensional analysis method but I computed it one-by-one. :((
I said I got it when I didn't and now I'm here
I hope to learn a lot from you thank you
pov: you're here the night before your chem test and you haven't payed any attention
Good day sir , I hope you are well .For question 5, why did you calculate the mass of NH4CL and not the mass of AlCl3 ?
lets be honest, its not our teachers, we just dont pay attention
Actually in most cases, it is our teachers. Mine gets so mad when your just ask a damn question.
Number 2 is 190.5 M
Jet johhh......😊 sir
i watch these videos and i understand them but when i see the test my brain does not comprehend the questions and i dont know how to solve them anymore....i h8 my lyf
Yup, same 😭
In question 2:
Why didn't you change the 50ml of ethanol to 0.05L to find the mass of ethanol since you changed the 450ml to 0.45L
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I don't get it 50 ml of ethanol is not equal to 50 g of ethanol?
No, because Ethanol is not 1g/mL, it is 0.79 g/mL, so by multiplying 0.79g/mL by 50 mL you get 39.5g of Ethanol. If Ethanol was 1g/mL you would multiply 1g/mL by 50 mL and you would get 50g, but Ethanol is less than 1g/mL so you would get less than 50g of Ethanol. Hope that helps. Good luck
@@Ghost.Spectrum good stuff
@@Ghost.Spectrum I understand now so to convert ml to g I have to multiply 50ml x density which is 0.789g/cm3 for ethanol and that is about 39.45 g
@@pepitobenegas Yes that is correct
thank you so much for the helpful video.
This practice problem is confusing me and I’m wondering if anyone can help me: when 34.5mL of 1.300M potassium carbonate solution reacts with 15.4mL of 2.900M hydrochloric acid what is the mass of gas that is produced?
Are you supposed to make it neutral charge? Example is sodium and oxygen, sodium is + charge and oxygen is 2-. So shouldn't you multiply sodium by two and use that in the grams to mols conversion?
Thanks a lot bro ❤
in 4:00 i don't get it, why does the answer is 6M?
We’re doing something simolar in my school
Idk why I bother going anywhere else for Chemistry help
Me who is watching this after the exam: I am 4 parrallel universes ahead of you
THANK YOU
THANK YOU SO MUCH SIR
Are you supposed to round Molarity to the correct sig figs?
Who's your teacher 🤯🤯
I got 1.8 for number 2. I think it was because I used 1 as the m.w for Hydrogen and not 1.008, also 15.99 for Oxygen and not 16. I double checked my equations and compared it to yours. That is so wacky I hope I don't get anything wrong in the finals for this lol.