Half Life Chemistry Problems - Nuclear Radioactive Decay Calculations Practice Examples

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This chemistry video tutorial shows explains how to solve common half life radioactive decay problems. It shows you a simple technique to find the final amount of the sample that remains and how to get that same answer using a formula / equation. This video contains plenty of examples and practice problems.
How To Balance Nuclear Equations:
• How To Balance Nuclear...
Alpha, Beta, & Gamma Decay:
• Alpha Decay, Beta Deca...
Half Life Chemistry Problems:
• Half Life Chemistry Pr...
Carbon-14 Dating Problems:
• Carbon 14 Dating Probl...
___________________________________
Nuclear Binding Energy & Mass Defect:
• Nuclear Binding Energy...
Nuclear Chemistry & Radioactive Decay:
• Nuclear Chemistry & Ra...
General Chemistry 2 Final Exam Review:
• General Chemistry 2 Re...
SAT Chemistry Subject Test Review:
• SAT Chemistry Subject ...
____________________________________
Coordinate Covalent Bond:
• What is a Coordinate C...
Complex Ions & Ligands:
• Complex Ions, Ligands,...
Naming Coordination Compounds:
• Naming Coordination Co...
Beer Lambert's Law:
• Beer Lambert's Law, Ab...
Crystal Field Theory:
• Crystal Field Theory
___________________________________
ACT Math Practice Test:
• ACT Math Test Prep
Final Exams and Video Playlists:
www.video-tutor.net/
Full-Length Videos and Worksheets:
/ collections
Chemistry PDF Worksheets:
www.video-tutor.net/chemistry...

Опубликовано:

21 сен 2016

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Комментарии : 438

@TheOrganicChemistryTutor Год назад

Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections Chemistry PDF Worksheets: www.video-tutor.net/chemistry-basic-introduction.html

@danielcervantes7826 Год назад

You condensed a week long module into an 18-minute lesson for me, you are a life saver

@yetesko 3 года назад

My professor Dr. Freeman got mad when I used an easier method so I’m glad I watched this video. Thank you!

@frankenwaifu8092 3 года назад

Dr. Freeman?

@tap5263 3 года назад

@@frankenwaifu8092 yeah I had him once, he was a mute and had an interpreter. Pretty cool dude

@petereziagor4604 3 года назад

I feel his pain

@tashofficials4790 3 года назад

😂😂😂😂😂job weldone👏👏

@peterrex5894 2 года назад

@@frankenwaifu8092 he is the main protagonist of the video game "Half Life

@brownieeater382 5 лет назад

This video is a life saver. I don’t understand my chemistry teacher’s explanations but this video really helped me out. Thanks!

@ginojovellanos3562 6 лет назад

The organic chem tutor is professional in teaching both math and science😄

@user-qz7xi3ix5k 5 лет назад

Saruppu

@alaamohamed4026 3 года назад

ksmk

@GabsARV 2 года назад

And finance, engineering and even how to run a RU-vid channel

@memmsssssssssss Год назад

guys how did you get the 2.7725887 answer

@coolpenguin4182 9 месяцев назад

@@GabsARV he teaches finance too??

@HEMMOROIDGAMING420 2 года назад

Gordon doesn't need to hear all this, he's a highly trained professional!

@gabrielmiller7586 3 года назад

This is the best video I could have asked for. It answered my questions, and it was immensely helpful.

@paulbuschman8318 7 лет назад

As always, extremely helpful. Thank you!

@byronkenoly 6 лет назад

This channel has like every physics topic..Awesome!

@InfamousAmanda 4 года назад

This video was so amazing, I couldn't begin to express how much I appreciate the help!!

@goofyahhhh4089 7 лет назад

Thank you so much! I am glad I found this video. I watched so many and they all were more confusing than helpful.

@ryansibley7315 4 года назад

hhhh im often wondering now when im listening to a tutorial/ lecture, why i'm not at home listening to organic chemistry tutor instead! i learn so much more from you! it's much closer to a one on one situation which is best

@lavendelelv 4 года назад

I was in science today and so many of us were confused! but i love our science teacher very polite and good at explaining but i’m just lost 😆 this helped very much as it went at my pace thank u!!

@lisacihcspcosm4675 6 лет назад

You are a fantastic tutor!! Thanks for taking the time to teach us. Your videos are so helpful.

@akamiyire4147 4 года назад

the way you solve problem is like you have magic in your hands, thank's sir I never knew that half life is this simple.

@klovesjb36 3 года назад

I wish you had been my professors for everything! I watch a different video everytime and I feel like I've learned more in this time then I had in 5 years

@roryjamieson60 4 года назад

This has been maybe my 6/7th time watching a video of yours in the past 5 days - very helpful!

@ikennaogwogwo Год назад

Thank you, bro. I'm studying Fire Safety Engineering at Ulster of University and this tutorial refreshes my A-level chemistry.

@elenacalvillo158 6 лет назад

I like how you did both methods to solve these problems. Honestly, I actually find the equation to be easier to use because you get to find everything and just have it all in one setting to divide.

@jaserkhelfa Год назад

Same

@gagerivera2289 Год назад

I never went to class during this subject and this video alone taught me the entire concept, THANK YOU

@anavelvel Год назад

I am so happy you exist, you have saved my studies countless times. Thank you so much for what you do.

@tyrant0424 4 года назад

My teacher made this stuff seem hard but you make it seem easy. Thank a lot man!

@brigettebarnes1131 6 лет назад

This video really helped to explain how the decay equation can be used, thank you!

@GemaPratamaAditya 3 года назад

whoops. wrong half life

@vrsity 2 месяца назад

😭

@user-xr5pc2tu9g Месяц назад

Reallll😭

@jcapo5 9 дней назад

Hahaha

@zellarc8843 4 года назад

THANKS SO MUCH, i really needed to learn this for my CETs

@myatthaeoo3283 4 года назад

wow your explanation is the best, now i can solve half-life problems within a minute or two... thank you so much

@hollytang8769 3 года назад

I feel my anxiety slowly going away 😭 Thank you, you are the God of stem 😘

@preetibedi2833 4 года назад

Thank you so much for this video, at least you can explain it correctly, verses my teacher. Keep on making more videos like these!

@Ash-hj7lu 6 лет назад

Thank you so much!!! All your videos are PHENOMENAL :)

@sharonprathiba9298 3 года назад

i had real confusion with this concept. But you made very easy for me. Thank you so much

@sujatsatapathy478 Год назад

Thank you brother I am in class 8 but I couldn't understand the basics of half life taught by my teacher but you did taught me in minutes.... appreciate it man.

@deanbalderston3357 3 года назад

Love all the tutorials! Thanks so much!

@ngoziiheme7583 4 года назад

This is so helpful. You are such a life saver. Thank you so much

@jstchillin3904 Год назад

Legit taugh a whole period in 18 minutes, I appreciate you.

@clairebanguis7227 2 года назад

Finally I understood this lesson THANK YOU PROFESSOR you help me a lot

@savannahzephorahraganas7046 3 года назад

Thanks very much! Just in time for my chemistry long exam :") More power!

@titilayoolaluwoye9491 Год назад

Finally ! I've been trying so hard to understand this half life , thank you sir for the explanations

@mustafatolgatokucu 4 года назад

Made by Gordon Freeman

@silver9181 Год назад

Yeah half life 2 cool

@jamesihara 10 месяцев назад

HALF LIFE FAN LETS GOOOOO🧪🧪

@jaredbourne4201 4 года назад

love your videos i have better understanding of half-life thanks to you bro

@yolandaschuenke4384 2 года назад

Thank you! You make it seem so easy.

@uchechukwuuzowuru5752 Год назад

Thank you for this video. I needed to quickly understand half life as simple as possible. I have an exam today, I hope a question comes out from this so I can dust off the question paper

@karimmohammed189 5 лет назад

Thank you so much it actually wasn't written in our book and I didn't understand it but now I do thanks to your video.😊😊😊

@averyfichter8516 8 месяцев назад

youre legit so helpful i have a quiz tomorrow partially regarding half lives, I'll let yall know how it goes!!! THANK YOU

@akshaysree595 7 лет назад

Thank you a lot.It helped me a lot for my entrance examination.

@christopheromoya535 11 месяцев назад

Couldn't imagine how hard my life would be in chemistry just without you

@victoriasouthard3791 3 года назад

Studying for my Subject Area test to teach! Love your channel it helps so much! The only thing I wish you had in the description was a link to a sharable document with all your problems in the video!

@tha_hardesst 4 дня назад

Can you also teach me hun

@rodrigobaldeon8443 4 года назад

I have a test this friday and this concept will be in it and my chemistry teacher Ms Harris (shoutout to her) didn't explain this way and overcomplicated my class.

@petersblessing22 3 года назад

Sir, ur page is excellent. Thanks for this perfection

@conleyquick1005 4 года назад

THIS WAS SO HELPFUL THANK U!!!!

@romflan8120 4 года назад

Not the Half Life I was looking for...

@bigtonybruiser 4 года назад

lol

@timothygao9442 4 года назад

and you clicked anyways?

@nupurdeb6833 3 года назад

Are you talking about half-life game?

@jordy612 3 года назад

you came looking for copper and you found gold

@drwatsonater1381 3 года назад

this is an underrated comment

@tusharsharma1703 5 лет назад

you are a true blessing brother

@yobruh6029 4 года назад

A (1/2)^H=R A= initial mass H= number of half life R= remaining mass

@hayleysingh474 3 года назад

Yooo thanks

@GraceSavedMe- 2 года назад

omgosh THANK YOU!

@vivia9975 2 года назад

I might be wrong but isn’t it N(t) = N0 * (1/2) ^ t/T N(t) = Remaining Mass N0= initial mass t= days that have passed T= half life For the first example it would be: N(t) = 200 * (1/2) ^ 32/8 N(t) = 12.5

@kandgray 2 года назад

k but how am I gonna remember that formula?? :(((

@vivia9975 2 года назад

wait I have to correct myself: t= time that has passed

@kingmaker3683 Месяц назад

Sir your explanation is awesome and so vivid....Thanks a lot

@cunninglus4795 3 года назад

If your calculator is fx-991ES plus like mine (or quite possibly could be applied to some) just press Alpha then x10^x button labeled as pie and you'll get the e.

@amarprasad8557 11 месяцев назад

Very nice video. Even a student of history graduate like understand the explanation. Thank you. Keep it up. ❤❤

@p-switcher4468 2 года назад

Thanks for help me understand these problems!

@annascott6984 6 лет назад

Thanks so much, I understand half life much better now! :D

@ashhu5395 5 лет назад

This really helped me thanks a lot👏👏

@watertiger8255 2 года назад

Half life?, more like life saver!! thanks man, needed it for my exam tomorrow

@tsheposeleke2835 5 лет назад

your work is amazing........ thanks man!!!!!!!!!!!

@ayotalia 5 лет назад

VERY helpful!! Thank you for the clarity and many examples/ways of solving the problems!

@jonassilondwa7127 4 года назад

One of the best tutors, If not the best.

@leafsalami7583 2 года назад

It's easy to understand half-life, because it's basically dealing with exponents of 2. But this a real help to calculate it, instead of getting a headache trying to do it myself.

@wavhudinevhutalu1265 6 лет назад

Your work is absolutely amazing! super helpful. Thank you! I would just advise you to use constant units in videos like density etc. It gets a bit confusing when sometimes you use cm and sometimes m so if you could always just convert to m. Thank you

@ilaydamahmutoglu5942 2 года назад

ı understand nothing in the class but now ı know everything .thank you sir...

@ahmadmuhammad2786 6 лет назад

You saved me in organic now you saved me in physics you my hero thank you soo much.

@megamenoshikodhi5494 2 года назад

YOU ARE SINGLE-HANDEDLY GETTING ME THROUGH UNIVERSITY. THANK YOU.

@koblaguiya4296 4 года назад

Thanks so much , it's very helpful.

@Schoolemail-qx1cu Месяц назад

شرحح ممتاازز !!thanks keep going 💪

@finemenbd 6 лет назад

thnx man .i wish u were my physics teacher

@silentassailant3905 2 года назад

literally had to lookup that ln calculation. haven't got to it yet in my text book I started late in my course and this is gonna help

@satrickptar6265 5 лет назад

Thank you!!!! I have Regionals Nuclear Science Quiz Bee on Tuesday! So helpful.

@nininicaa515 5 лет назад

i'm also participating a nuclear science quiz bee lol

@AsohEden-ze5bv 6 месяцев назад

Thank you so much you have no idea how much this helped 🥰

@AyakaSori 4 года назад

Forever grateful for your videos

@arshiastrash Год назад

THANK U THIS SAVED MY LIFE

@weqaralwahaibi7293 7 лет назад

literally the best!

@epikjordyn 4 года назад

I have my first exam as a freshman tomorrow, which is science. Thank you so much!

@aaronius4444 3 года назад

You are literally keeping my mental health afloat. Thank you

@tragedy2722 3 года назад

Pls Aaron I know you don’t know me but pls help me with my work it’s due tomorrow if u reply I’ll send you the questions lol

@aaronius4444 3 года назад

@@tragedy2722 Yeah dude, what do you need help with?

@supremevibes4896 3 года назад

@@aaronius4444 bruhh 😭

@graceaderinto8717 2 года назад

Thank you for the explanation it's really helpful

@GabrielAwuku 2 месяца назад

Infact this man is indeed a professor. I really like his teaching. How can a teacher make a one week or one month topic just turn into 18minutes?This man is very awesome.

@anjalivinod7448 6 лет назад

sir thq . it was vry useful for me to solve all my board isc sums

@fern-santos 6 лет назад

Thank you so much for this!

@kindofanidiot 2 года назад

Rise and shine, Dr. Freeman.

@ukemeezekiel9637 2 года назад

Many thanks in anticipation.

@emilycarmichael4576 4 года назад

thanks for the practice!

@doreenlarbi5208 2 года назад

I'm very happy In fact this is very helpful Thank you 😊

@hope.koi333 2 года назад

i got a 105% on my chem test bc of you. 🙏🏽 thank you for your service 🤞🏽 you a real one

@kandgray 2 года назад

Hope I get that on my test on Friday. I really need it!!! I have a B ugh

@ninjanerdstudent6937 5 лет назад

So there are 2 equations that can be used and manipulated for all of these half-life problems: A Final = A*e^(-kt) and k = (ln2)/half-life & algebra is used to move the stuff around. Why did my instructor over complicate this so much?

@tomatrix7525 4 года назад

The Desi Vegan my prof took two weeks to explain what you did in several sentences. Two weeks later and he had evertone confused and asleep....

@unanimousd5403 3 года назад

what is the value of “e”? i don’t get it

@ninjanerdstudent6937 3 года назад

@@unanimousd5403 in your T.I. Calculator just enter “e” to the power of “1”. It’s a constant.

@yimanubadey-hv2hh Год назад

never gonna fail another half life question again tnx!!!!

@jamjanwari2391 7 лет назад

amazing helped a lot to get the concept of calculation of half life of elements .Stay blessed.

@TheOrganicChemistryTutor 7 лет назад

Thanks

@heygosmil3 6 лет назад

The Organic Chemistry Tutorial thank you!

@alwaysnegative211 4 года назад

I'm so glad I don't have to do this. I just like watching complicated math being worked out

@t.aastronomy2086 5 лет назад

Very helpful !

@kingreano6443 8 месяцев назад

Thank you very much.. it helps a lot.

@myfccs 8 месяцев назад

For people that haven't learnt about the 'In and e^ thing' I've 'concluded' an equation from this video, hope this would help (Initial amount) = (final amount)*(1/2^((exp time)/(half life))) the exp time and half life should be in same unt, eg: both in days this worked for me anyways, so idk if im wrong or not 😂

@JaelorAvilaPoulin 8 месяцев назад

Nope! This is legit man! I your equation written in symbol form: N=N_0 * (1/2)^(t/h) N= amount solving for N_0= initial amount t=time elapsed h=half life This works because whenever t is equal to the half life, we are raising the factor 1/2 to the first power which of course equals itself and that product times initial amount will equal half the initial amount which checks out with the whole idea of "half-life". ex. problem in the video with iodine-131 N=200 * (1/2)^(t/8) plug in the value for t = N=200 * (1/2)^(32/8) = N=200 * (1/2)^4 =N=200 * 0.0625 =N=12.5

@Alhaj_Muhammad. 9 месяцев назад

Perfect explanation sir

@venugopal9299 5 лет назад

nice video helped a lot.

@gloryndjambi8373 Год назад

Great teaching

@bagakayko 5 лет назад

My professor was furious at me when i used the easier solutions on the finals lul

@kevinngo640 4 года назад

bagakay ko same, I feel they so dumb in maths because they just think they are smart, but they don’t know other people can understand their complicated solution or not. I hate math course from university and college.

@rxseqvartz5679 4 года назад

when you go to collage its the opposite lol

@datboi1861 3 года назад

That's a bad teacher.

@drwatsonater1381 3 года назад

i once completed a exam without using any of the methods taught in lecture and my prof. handed the exam back graded, he had written on the top that he couldn't mark my work incorrect because i still got the answer right. But isn't that the whole point? to find the answer regardless of means (with the exception of cheating of course).

@brookslevitate4428 3 года назад

@@drwatsonater1381 I have had some exam questions specify the method they want to be used.. But most the time its simply find the answer snd show how you got it--irregardless of what method you used.