THANKYOUUUUU SO MUCHHHH!! I've been struggling with this because I need someone to like explain every step by step and guess what?? YOU JUST DID IT. Thankyouuuu
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
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?
Yeah man, I've heard that here in Canada we use BEDMAS (brackets, exponents, division, multiplication, addition, subtraction) but others use P for parentheses, etc. Thanks for commenting that here, I'm sure it'll help someone else !
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)
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?
you could just use the solve function in the calculator to find the t in the second problem. I assume your 10 canadian bucks calculator will have solve function as where i live in, almost every calculator do have the solve function if you know where to find it
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.
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 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
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
... 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
"Dont be a fool!" lol
dat intro
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!
man I so wish you were my lecture. you just make things seem so easy and understandable.
This guy is a legend
Your the man, You explain better than a million teachers with their videos
I love watching 11 year old tutorials that still work and teach me chem simple
someone still watching in 2024 👀 same
This man just single-handedly saved me for my chemistry test today
it's like the textbooks make it hard on purpose or something
rise and shine mr freeman
So glad I can go online and find a great explanation from 11 years ago
your still saving lives 10 years later
Finished AP chem exam, still goes back to chemistnate for precalc help
Been through tons of vids and this one finally helped me without all the other complicated stuff good work lol
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?)
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!
Taught me half life calcs before my mid year exam, legend!!
I love how you point to the words and numbers. Great video. Very helpful
THANKYOUUUUU SO MUCHHHH!! I've been struggling with this because I need someone to like explain every step by step and guess what?? YOU JUST DID IT. Thankyouuuu
He's so excited its so cute
This guy is really goofy, but I like that, makes things interesting
as for "don't be a fool.." and "I don't care" :v :v :v I enjoyed this tutorial
Even just the formula has saved my life, especially with the teacher never teaching this and proceeding to put it on the quiz :))))))))))))
"use bedmas DONT BE A FOOL!!!"
hhaahahah made me laff (im sad)
Cheer Up! It's chemistry!
God bless you Nate, had a test in 4 hours, and didn't know how to solve for exponents.
this saved my life 🙏🏻 chem test cram
This man just saved my semester, I appreciate you
you are the greatest teacher i have ever seen. Im not even exaggerating.
The real antidote of radioactivity calculation. Thanks alot sir.
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!!
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 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.
whos ready for finals this week?
This guy teaches so much better than my actual school teacher
This video helped me sooo much and I really like the way you teach definitely subscribing!
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.
THANK YOU SO MUCH!!!! My teacher just handed these problems to us when we were leaving class!! Gotta Love Honors Chem.....(Sarcasm)
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
chemistNATE absolute baller
Takes one to know one
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
chemistNATE, thank you so so much! I figured this out now, my teacher doesn't teach properly, but you solved my problem. Thanks again!
Its been 10 YEARS woh!
You said "use bedmis don't be a fool"? Your remark was made at 3:30 in your video. I'm assuming that is an acronymn? Would love to know what it means?
I found it. I know it as Please Excuse My Dear Aunt Sally for the order of operatiions. Thanks, by the way. Great video.
Yeah man, I've heard that here in Canada we use BEDMAS (brackets, exponents, division, multiplication, addition, subtraction) but others use P for parentheses, etc. Thanks for commenting that here, I'm sure it'll help someone else !
Wow did not expect the last part.
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.
This man just single handedly saved my semester.😭🔥
thank you for the video. for these 7 minutes I understood more then from 3 weeks of lectures!!!
I love this guys attitude
Truly a one of a kind wizard, thank you wise stranger...
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)
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.
I love you you may have inspired me to get back into some math after a lot of bad teachers
your videos are better than any others
0.51...the idrc had me
3.33...use BODMAS, don't be fOOl
5.36...im also a math whiz fyi
It's 2024, best teacher ever 😂
AWESOME DUDE. I have a prelim exam tomorrow and I had no idea how to do it until now.
I love you, thanks for telling us to work it backwards!!! Greetings from Houston, Texas..
This is the best teacher ever!!!
John Malovich is teaching me halflife calculations!
stg, this dude is gonna be getting me through my bioengineering degree
damn ! my physics teacher couldnt explain this to his class in two weeks, and u did it in 7 mins ! thanks!
Wow, corny and bland jokes. But, literally the best explanation of half-life calculation I have seen... Great job Nate...
Thank you god! i understood a 2 hr lecture in7.4 minutes!! thanks!
Without this Math Wizz..
I'm totally insane..xD
Thanks^^
"Use BODMAS. Don't be a fool"
I felt called out lmao
the intro is giving vine energy
Many many manyyyyyyyyyyyyyyy Thanks Sir... a lesson forgotten for so many years... thanks for making it easy for me...
Half-Life:Decay
For the PS2
I am entering the same numbers etc into my calculator and i am coming up with different answers to you?
You the best teacher 👑
I have an exam tomorrow and this video from so long ago helped😍
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?
Thanks for giving a easy way to check out half life 😊😊
how do you calculate how much time for a reaction to occur using half-life?
Thank you so much. You're a fricking legend.
you could just use the solve function in the calculator to find the t in the second problem. I assume your 10 canadian bucks calculator will have solve function as where i live in, almost every calculator do have the solve function if you know where to find it
There is also A=Ao x e^( - decay constant x t )
This guys the Goat 🐐
I didn't know canon made calculators
thank you very much...you have made me a master in solving half life problems.
Bruh I have a science exam tomorrow and this is the only thing I don’t know
QUESTION- does this work for all half life calculations? including second order reaction half-life?
Strontium-90 has a halflife of 29 years. If there are 400 grams of strontium-90 initially, how much, to the nearest gram, will remain after 87 years?
juliya smith I believe its 50 grams
juliya smith I pretty sure answer would be 600 gm
i think the equation is Q = Q0 (1/2)^t/h, which got me 50 grams.
+Sandeep Shankwar 600 grams is more than the initial amount.
Brooooooooo!!!!! All Hail the King.. ChemistNATE!!!
Please disregard - I was using the wrong method to enter the exponent! Yay! Thank you, again chemistNATE!
love chem watching this cause i cant sleep
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.
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
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! : )
Your way of explaining is so amazing and simple. Thank you
"Don't be a fool!" haha
emergency services because he is on fire with videos
Omg already better than my chem honors teacher
can you reverse calculate the half life if given that 20 % of a substance decays after a year?
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