When i enter 1440 divided by 58 i get the answer 24.82758621. When you do it you don't seem to get he decimal point after 24. Also the later calculation you get the correct amount of zeros before the numbers start whilst on my CASIO fx-85GT calculator i get 3.358550105x10-8. I know what 10-8 means i just wondered if you could tell me how i get my calculator to give the answers in the same form as you get?
Isn't it easier to use the 0.693/k = (half-life), solve for K and then use the first-order rate law ln(At/Ao)= --kt ? Substituting k in Ao = initial amount and At = amount remaining. I used these for each problem and got the same answers. Maybe it's just me, but this way seems much faster and easier to solve. Anyone else prefer this method?
+TheOomen2012 I understand and hope I didn't offend. I was just taught a different way and wanted to offer it up in case anyone else was struggling like me. I find that seeing alternatives sometimes helps me learn better. Thank you
You da man! ------ Struggled for eternity on understanding this from my professors and teachers. Learned it here in a little more than 8 minutes. One like for this vid.
Hi ChemistNATE and everyone, Could you please help me with this following question Radioactive materials are considered to be relatively safe when their activity has fallen below 0.1% of their initial value. (a) How much half-lives does this take? (Answer = 10 half-lives) (b) Plutonium-239 is a by product of nuclear reactors. Its half-life is 24 000 years. How long does the plutonium-239 have to be stored as nuclear waste before it is considered safe to handle? (Answer - 240 000 years)
I don't even care tht he was a bit cocky anymore I understood here out of all the other 10+ videos I watched thanks nate! *oh and yea exam in an hour!!!
Got a question saying " The activity of a sample falls to 0.60 of its original value after 100s. Find the decay constant." What formula should i use? How would you answer that?
IT WAS SERIOUSLY THAT EASY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I SPENT HALF AN HOUR TO GET IT OUT AND ALL YOU HAD TO DO WAS TOO JUST PRESS IT :( Thank you so much!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! : )
I need to find out the radioactivity of a certain isotope using the half-life and the mass. How in the heck do I do this? Nothing on the internet is helping me, and neither is this video.
I love when i go online and find a tutor thats high as fuck and teachs like a boss.
Lmaoo
Fr
did this man sneeze because bless this man for helping me.
I know your 6 years late but bro its 2020 cant make those jokes nomo
😂😂😂
Bars
that happened ?! 😂
Funny
... and just like that, in 3 minutes, you did better than pages and hours of my chemistry book and lecture. Thank you!!!!
Very enthusiastic.
Enjoyable.
Concise.
I learned.
Nice Madotsuki pfp
Your explanations are great because you don't mention what the equations mean, you actually label them. Complete boss.
Finals tomorrow anyone?
Yup
even 2 years after
@@zayedalkulaib9678 Finals today lol
even 3 years later
yeah
man I so wish you were my lecture. you just make things seem so easy and understandable.
"Dont be a fool!" lol
dat intro
I love watching 11 year old tutorials that still work and teach me chem simple
someone still watching in 2024 👀 same
Thank you so much. Why can't my teacher just say this?
Because teachers also have nice degrees, and they want to feel good about their fancy degrees.
Because they don't truly understand the concept well enough to simplify it.
***** highly agree!
This guy is a legend
Your the man, You explain better than a million teachers with their videos
I watched several videos on this topic and this is by far the most clear and concise explanation I was given! Thank you so much for making this video!
I love how you point to the words and numbers. Great video. Very helpful
This man just single-handedly saved me for my chemistry test today
you're killing me XD "yo just guess..I'm a math wiz fyi"
Please help. For the first problem. How come that
(.5^24.82758621=0.0000336?)
So glad I can go online and find a great explanation from 11 years ago
Taught me half life calcs before my mid year exam, legend!!
He's so excited its so cute
Maaaannn thank you so much i was finding easy way to teach my students and here i met you. Excited to go to class now. Thanks alot.
This video helped me sooo much and I really like the way you teach definitely subscribing!
God bless you Nate, had a test in 4 hours, and didn't know how to solve for exponents.
Finished AP chem exam, still goes back to chemistnate for precalc help
rise and shine mr freeman
it's like the textbooks make it hard on purpose or something
this saved my life 🙏🏻 chem test cram
Thank you so much for the formula, really appreciate that and I liked and shared it too. Only 8 days left for IGCSE physics exam,soooo.
This guy is really goofy, but I like that, makes things interesting
"use bedmas DONT BE A FOOL!!!"
hhaahahah made me laff (im sad)
Cheer Up! It's chemistry!
This man just saved my semester, I appreciate you
your still saving lives 10 years later
After watching numerous videos, I was still lost! This is The Best and easiest way to calculate Half life problems!!! I finally got it, thank you!!
as for "don't be a fool.." and "I don't care" :v :v :v I enjoyed this tutorial
chemistNATE, thank you so so much! I figured this out now, my teacher doesn't teach properly, but you solved my problem. Thanks again!
Even just the formula has saved my life, especially with the teacher never teaching this and proceeding to put it on the quiz :))))))))))))
Wow did not expect the last part.
chemistNATE absolute baller
Takes one to know one
This is the best video on the topic. It uses the best formula and shows how to solve for the exponent with logs. Thank you so much.
I love you, thanks for telling us to work it backwards!!! Greetings from Houston, Texas..
Thank you so much. I just watched this and am amazed about how my physics test is going to be made easier. May God bless you for me.
you are the greatest teacher i have ever seen. Im not even exaggerating.
Truly a one of a kind wizard, thank you wise stranger...
I love this guys attitude
Without this Math Wizz..
I'm totally insane..xD
Thanks^^
This guy teaches so much better than my actual school teacher
This man just single handedly saved my semester.😭🔥
The real antidote of radioactivity calculation. Thanks alot sir.
When i enter 1440 divided by 58 i get the answer 24.82758621. When you do it you don't seem to get he decimal point after 24. Also the later calculation you get the correct amount of zeros before the numbers start whilst on my CASIO fx-85GT calculator i get 3.358550105x10-8. I know what 10-8 means i just wondered if you could tell me how i get my calculator to give the answers in the same form as you get?
Mine is doing that too
Isn't it easier to use the 0.693/k = (half-life), solve for K and then use the first-order rate law ln(At/Ao)= --kt ? Substituting k in Ao = initial amount and At = amount remaining. I used these for each problem and got the same answers. Maybe it's just me, but this way seems much faster and easier to solve. Anyone else prefer this method?
+Rachel Manno.I wud but i didn't really get what you said, can you do video on that?
+Rachel Manno All roads lead to rome, I prefer using logarithm just because I use it allot but I guess your method also works well.
+TheOomen2012 I understand and hope I didn't offend. I was just taught a different way and wanted to offer it up in case anyone else was struggling like me. I find that seeing alternatives sometimes helps me learn better. Thank you
@@rae7305 Sorry Rae.. His way is soooo much easier especially for those whom are a little weaker in the Math Department
thank you for the video. for these 7 minutes I understood more then from 3 weeks of lectures!!!
Wow, corny and bland jokes. But, literally the best explanation of half-life calculation I have seen... Great job Nate...
Thanks for giving a easy way to check out half life 😊😊
damn ! my physics teacher couldnt explain this to his class in two weeks, and u did it in 7 mins ! thanks!
THANK YOU SO MUCH!!!! My teacher just handed these problems to us when we were leaving class!! Gotta Love Honors Chem.....(Sarcasm)
Thank you so much. You're a fricking legend.
First math Video that made me laugh !! XDDD Thanks for your energy and explanation. That was.... fun ? 0o
You da man!
------
Struggled for eternity on understanding this from my professors and teachers.
Learned it here in a little more than 8 minutes.
One like for this vid.
I have an exam tomorrow and this video from so long ago helped😍
thank you very much...you have made me a master in solving half life problems.
Many many manyyyyyyyyyyyyyyy Thanks Sir... a lesson forgotten for so many years... thanks for making it easy for me...
whos ready for finals this week?
AWESOME DUDE. I have a prelim exam tomorrow and I had no idea how to do it until now.
Its been 10 YEARS woh!
Your way of explaining is so amazing and simple. Thank you
stg, this dude is gonna be getting me through my bioengineering degree
I love you you may have inspired me to get back into some math after a lot of bad teachers
Hi ChemistNATE and everyone,
Could you please help me with this following question
Radioactive materials are considered to be relatively safe when their activity has fallen below 0.1% of their initial value.
(a) How much half-lives does this take? (Answer = 10 half-lives)
(b) Plutonium-239 is a by product of nuclear reactors. Its half-life is 24 000 years. How long does the plutonium-239 have to be stored as nuclear waste before it is considered safe to handle? (Answer - 240 000 years)
I don't even care tht he was a bit cocky anymore
I understood here out of all the other 10+ videos I watched
thanks nate!
*oh and yea exam in an hour!!!
yo chemisNate, thanks a lot for the problem 2 you showed. I was looking for it in the internet. gladly found it in your vid. thanks
your videos are better than any others
Thank you god! i understood a 2 hr lecture in7.4 minutes!! thanks!
"Use BODMAS. Don't be a fool"
I felt called out lmao
THANKKKK YOU SO MUCH SAVED ME ALOT ! Haha i laughed when you said you're a math Wiz !
Half-Life:Decay
For the PS2
THANK YOU MUCH SAVIOUR
Thank you so much sir, I felt lost earlier but this really helped me
Bruh I have a science exam tomorrow and this is the only thing I don’t know
This guys the Goat 🐐
I didn't know canon made calculators
This is the best teacher ever!!!
Got a question saying " The activity of a sample falls to 0.60 of its original value after 100s. Find the decay constant." What formula should i use? How would you answer that?
John Malovich is teaching me halflife calculations!
"Don't be a fool!" haha
But how do you pinpoint the amount of primordial daughter and father isotopes?? Halflife per se is WORTHLESS!!
See the problem is, I need to figure out the half life. I wasn’t given the half life
The initial amount and the remaining amount must have been given do check it again
love chem watching this cause i cant sleep
Sorry about that, it has now sunk in.
Brilliant thank you so much.
Please disregard - I was using the wrong method to enter the exponent! Yay! Thank you, again chemistNATE!
Brooooooooo!!!!! All Hail the King.. ChemistNATE!!!
really on fire...
well explained
Thank you, thank you, thank you for your clear and straight to the point explanations!
You made this very easy to comprehend. Thank you!
You the best teacher 👑
QUESTION- does this work for all half life calculations? including second order reaction half-life?
Roger, but how can we tell the half life in millions or billions of years? Nobody was there to see it.
Thank you my guy for explaining. It truly helps a lot!
There is also A=Ao x e^( - decay constant x t )
IT WAS SERIOUSLY THAT EASY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I SPENT HALF AN HOUR TO GET IT OUT AND ALL YOU HAD TO DO WAS TOO JUST PRESS IT :(
Thank you so much!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! : )
I need to find out the radioactivity of a certain isotope using the half-life and the mass. How in the heck do I do this? Nothing on the internet is helping me, and neither is this video.