For all those wondering how to solve for lattice energy without specific values for ionic radii, recall that ionic radius increases to the left and downwards. You don't need a value to compare ionic radii - just its relative size. For instance, Na has a larger radius than Li.
Your channel has been SAVING ME from failing chemisty. You explain things so well and go very slow (which my professor does not do lol). Thank you for making content like this for free use. It means a lot to all of us!
Thank you for posting videos that are so easy to follow! The concepts are explained well and demonstrated in detail. I can’t tell you how much I appreciate it!
Professor Organic Chemistry Tutor , thank you for a basic outline and introduction into Lattice Energy of Ionic Compounds in AP/General Chemistry. The two examples show the impact of Lattice Energy in different cases. In case one from the video, as the Charge increases, the Lattice Energy also increases. The second case also from the video, as the Radii decreases, the Lattice Energy increases. Pattern recognition also helps when learning this material. This is an error free video/lecture on UA-cam TV with the Organic Chemistry Tutor.
I'm not even sure if we covered this topic..the more I watch the videos the more I realize that I know nothing and this makes me more nervous because I'm writing an exam in one day's time.
something a little annoying to grasp at first is that they are always asking for the energy higher in **magnitude**. I was confused at first because it felt like the answer to highest lattice energy would involve the least negative number. My book and homework doesn't always reference absolute value or magnitude so it seems a little unintuitive at first. I mean in general it seems unintuitive why there is a release of energy during the solid ionic formation but i guess sometimes in these classes you just have to keep plodding along
I didn't understand this in class I didn't understand this in the book. I'm like banmmm. Let me go on UA-cam University. Where best Prof dwell. And there here go. This guy just with the formula. I'm gonna killed that exam.
Surely you mean 'more exothermic' as opposed to 'higher'? Because 'higher' indicates a larger number ie more endothermic. It's quite confusing when you use the terms incorrectly.
Ionic radius is already determined for each atom, you just have to learn them Anyways in this question the exact ionic radius isn't needed. Just make sure which atom is larger and which is smaller.😊
terpconnect.umd.edu/~wbreslyn/chemistry/naming/findingioniccharge.html This is one of those subjects where you get more confused than you have to. *flips table
and i didn't get how, if we increase the charge LE increases, and also if we increase the radius the LE decreases, but in the case of anions, while increasing the charge, the radius increases, does this mean that lattice energy is bigger (bigger charge), or its smaller (bigger radius)....?
To determine which compound that has the highest lattice energy, the definition says it has to be an ionic compound. CO2 ( C + O2 ) are to close in electronegativities so a covalent bond is form.
Well, the order of size for atoms and ions goes anion(negative ion), the neutral atom, and the cation (the positive ion). The greater the positive charge the smaller the ion. However, the greater the negative charge the smaller the ion. Anions are typically bigger than cations.
if you look at the periodic table, the atomic radii decrease going from left to right, and from bottom to top. keeping that in mind, you can imagine in your head which has the bigger lattice energy just by thinking of their sizes. but yeah its easier to do so by counting charges. (just after typing this i saw you wrote your comment a year ago but i already typed this outttt. sorry)
Ionic radius increases to the left and downwards of the periodic table. You can use relative sizes as opposed to actual values to solve for which of the compounds has a higher lattice energy.
Chapter 8 - Video Lessons: www.video-tutor.net/chemical-bonding.html
For all those wondering how to solve for lattice energy without specific values for ionic radii, recall that ionic radius increases to the left and downwards. You don't need a value to compare ionic radii - just its relative size. For instance, Na has a larger radius than Li.
Thankx
Calculate Z effective and the # of shells
so basically opposite of direction of electronegativity. thanks!
I was just about to comment this. Nicely done
ahhhh thanks, my head was exploding over here
Your channel has been SAVING ME from failing chemisty. You explain things so well and go very slow (which my professor does not do lol). Thank you for making content like this for free use. It means a lot to all of us!
My chemistry teacher sucks. He never explained the knowledge in detail. Your video really helps me a lot. Thank you!!!!!!
same, he doesn't know how to teach at all
Guess We are all Living the Same Life!! 😂
Thank you for posting videos that are so easy to follow! The concepts are explained well and demonstrated in detail. I can’t tell you how much I appreciate it!
Perfect time to put out this video, you're a blessing
I have my chemistry final today and none of this is in the PowerPoint or book from what I saw 😭 Thank you wish me luck ❤️
How was it?
HOW WAS IT
1 year later and I feel you. The ACS practice exam is nothing like what we studied at all
Professor Organic Chemistry Tutor , thank you for a basic outline and introduction into Lattice Energy of Ionic Compounds in AP/General Chemistry. The two examples show the impact of Lattice Energy in different cases. In case one from the video, as the Charge increases, the Lattice Energy also increases. The second case also from the video, as the Radii decreases, the Lattice Energy increases. Pattern recognition also helps when learning this material. This is an error free video/lecture on UA-cam TV with the Organic Chemistry Tutor.
Idk why I’m watching this. I already graduated, thanks to this channel. I can’t believe I miss chemistry II 😂
never been this jealous in my life
Best teacher..this helped a lot.
Thanks
*_Which country you are belonging to? 😊👍_*
I'm not even sure if we covered this topic..the more I watch the videos the more I realize that I know nothing and this makes me more nervous because I'm writing an exam in one day's time.
Bro has never disappointed me
at 1:20 he mixed up distance between the ions and atomic radius, which are inversely proportional.
Thanks u too much
One among the best teachers I ever known
*_Amazing video Sir I'm from India 😊🇮🇳👍_*
Back off he’s mine
Wtf bro! !! 😂😂@@dhanyajayaraman8739
really helped me understand better than the textbook. thx
Thank uuuuuuuu 🔥 thank u brother ..u content is good ..may God shower u with all well beings in life ...🙏😎
Yo dude you alright sounding kinda down
LMAO
I’de also be kinda down if i had to explain the entire universe and what comes after
How do you know the picometers of the elements ?????
You've made me like chemistry
Thank you sir
Thanks bro i like your video with my phone, with laptop. To express my respect.
I'm not sure whether or you read those comments or not. I can't tank you enough. I will definitely make a donation one day.
Thanks alot. you explain well. your lectures helps me alot. keep it up.
If you go to the description and see that under the topic listed, lattice energy has the same thumbnail as this video. I love that!
great video it really helped
You are really the best tutor
why are you actuality the goat
I thought that a higher negative number like (-4) is smaller than (-1) so how can NaF be greater in LE than MgO?!?
This negative sign shows that it is exothermic not the seign of the value
@@mudassirsaleemworld8093 wait so ur saying that the sign of the value doesnt matter, but what does matter is just the number right?
@@leokage-1307generally with energy, the sign indicates whether the reaction is exothermic or endothermic. (Emits or absorbs energy, respectively)
Thank you for the video it actually helped me alot Thanks again
Where does he get 3800 and 923 for the first problem? Should I just know that already for my exam?
Wondering the same thing man idk
lmao someone is gonna find this ans wounder the same thing, we🎶 all in this together 🎶🎶
Really nice lecture. Awesome explanation. Keep going bro 😉
*_1:31_**_ By the way Sir plz tell me which type of distance 'R' is, tomorrow is my inorganic chemistry exam plz tell fastly. Nice video 😊👍❤️🇮🇳_*
Did even pass it it's been one year man
Mans out here saving our GPAs
Best explanation❤❤❤
Thank you so much 🌸🌸 this is literally saved me
How to explain the sharp drop in radius from group I to group II but the much smaller drop between successive non-metals that form anions?
Super helpful!! Thank you!
9:23 Is it like check the ones with the oxygen first??
how do you find the kJ/ mol
U r the best😊😢
Amazing lectures
Does the subscript of the element matter? Ex H2O vs H2O2, will the O2 affect the charge vs the O?
You helped me !!
Thank you❤
something a little annoying to grasp at first is that they are always asking for the energy higher in **magnitude**. I was confused at first because it felt like the answer to highest lattice energy would involve the least negative number. My book and homework doesn't always reference absolute value or magnitude so it seems a little unintuitive at first. I mean in general it seems unintuitive why there is a release of energy during the solid ionic formation but i guess sometimes in these classes you just have to keep plodding along
What about comparing ionic compounds with multiple anions or cations?
It's the same,
You take their product.
thank you so much for this awesome vedio ☺
*_Hey you are Indian, isn't it. What are you doing here? 😊👍_*
Thanks so much! As always!
This 🤔 concept becomes easy when you understand the periodic trends or the factors that influence the increase or decrease of the lattice energy.
But how would you know the size of the molecule just by looking at the PT?
Thank u helpful continue 😊
How do you get those values in pm?
look at the periodic table
Very well done, thanks a lot! ⭐⭐⭐⭐⭐
Why you didn't show how to calculate lattice energy for kj/mol 😭
I didn't understand this in class I didn't understand this in the book. I'm like banmmm. Let me go on UA-cam University. Where best Prof dwell. And there here go. This guy just with the formula. I'm gonna killed that exam.
I loved you man :D
Surely you mean 'more exothermic' as opposed to 'higher'? Because 'higher' indicates a larger number ie more endothermic. It's quite confusing when you use the terms incorrectly.
Thanks!😉 It helps me a lot!
how do you find the pico meter
what is K in this formula?
How do you determine ionic radius and the pecal meters? Thanks for a helpful video!
Ionic radius is already determined for each atom, you just have to learn them
Anyways in this question the exact ionic radius isn't needed. Just make sure which atom is larger and which is smaller.😊
Picometer*
which one would have a higher LE, large ions or large radius
Tony Wang large ions
Simple n smart tnx a lot
Ur a god
My book didn't even imply that charge or atomic radius were factors of lattice energy. Thanks!
I came here because the uni I'm applying to have this in this exam, but when I ask, it's for year two :'D
All the thanks ❤
I dont get it ,how he culculate energy value of MGO and NAF to be -3800 for MGO and -923 for NAF
So when comparing sizes when the charge is the same, do you only compare the cations of one compound with the cations of the other? (Like Li and K?)
You would go based on the amount of protons. More protons equals smaller lattice energy because the ion is bigger
it is really useful
Thank you!
How come Na is a gas?
When looking for lattice energy, both ions will always be in gaseous state forming into a solid
Thank you!
Los Simpsons m
😮😮😮😮🎉🎉🎉🎉 thanks bro❤
I appreciate you very much
How do i know the charges of each element
experience
that doesnt help@@narutoisthebestevaaa
Oxidation no
terpconnect.umd.edu/~wbreslyn/chemistry/naming/findingioniccharge.html
This is one of those subjects where you get more confused than you have to. *flips table
Thank You Very Much
Thank you so much
Thank you so much :)
we cant take a phone to the exam.how will we know the size that elements ionic radius
Thanks bro
and i didn't get how, if we increase the charge LE increases, and also if we increase the radius the LE decreases, but in the case of anions, while increasing the charge, the radius increases, does this mean that lattice energy is bigger (bigger charge), or its smaller (bigger radius)....?
dumb dumb dont study chemistry
Thanks Man
what if there is an ionic compound such as C02? Would it be larger than Al2O3?
To determine which compound that has the highest lattice energy, the definition says it has to be an ionic compound. CO2 ( C + O2 ) are to close in electronegativities so a covalent bond is form.
nice video...but sir plz increase ur video quality very low volume...
But what if pm isnt given?
Well, the order of size for atoms and ions goes anion(negative ion), the neutral atom, and the cation (the positive ion). The greater the positive charge the smaller the ion. However, the greater the negative charge the smaller the ion. Anions are typically bigger than cations.
The comment above should say "the bigger the ion" for the anion.
so helpful
you have the atomic radii memorized??
I thought he was looking them up but he wasn't. I'm impressed
if you look at the periodic table, the atomic radii decrease going from left to right, and from bottom to top. keeping that in mind, you can imagine in your head which has the bigger lattice energy just by thinking of their sizes. but yeah its easier to do so by counting charges. (just after typing this i saw you wrote your comment a year ago but i already typed this outttt. sorry)
Thank you! Your voice sounds like Justin Timberlake.
I thought it was Mark Wahlberg.
I thought it was Shawn Mendes
How is -4 bigger than -1?
-4,-3,-2,-1,0,1,2,3,4
Magnitude
Absolute value
Lol i too got the same doubt
its a bigger NEGATIVE charge.... that's the important part don't let the signs confuse you
Mod
Thank you
thank you thank you thank you
Tnx so much
Thanks understand a alot
How did you calculate the lattice energy and ionic radii?? smh
Ionic radius increases to the left and downwards of the periodic table. You can use relative sizes as opposed to actual values to solve for which of the compounds has a higher lattice energy.
Awesome
Can i get some help on calculating latice energy considering coloumbic interactions ? with the formula with Madelung constant ?
GOVIND
GOVIND
i ahev doubt that whether energy relase or absorb
energy is released as the reactions are exothermic
Thanks
great vid
iodine ionic charge is -1, 126.91
He speaks so slowly that even when the speed 1.5 he still slow asf;)
thank you for the help tho