Qalamul Akbar my grade actually turned out to be rlly good in chem i think cuz this was taught in the beginning of the year i just didn’t rlly transition from summer
Ty for saving my life I swear the textbooks just converted and never explained and it looked so simple but I was still so confused and this broke it down perfectly. Thanks!!
Thank you so much for posting this. This was one of the first lessons in chemistry, which I was not getting at all until seeing your video, and my teacher continues to give us problems that require conversions and I'm getting them every time. You have saved my grade.
Holy crap! After going through several TH-cam videos and meeting with my professor to explain the metric system, you by FAR explained it so I can understand. Thank you, thank you, thank you!!!!!!
Wow, of all the times I've encountered SI Conversions and repeatedly failed to understand the topic, you broke it down the best for me to finally understand it once and for all! Thanks so much!
wish my teacher made videos like this for people who forgot the subject entirely. Nobody asks questions and I'm sure its because they are to shy. anyways thanks for making this video it helps lots.
out of almost 5 vids I watch, this is the only one I understand, I spent 3 hours with the other vids and all it took for me to understand this from his vid is 10minutes..... thank you so much
Thank you so much!! I've been struggling to understand how to do this and have watch so many other videos, yours made to so simple and easy to understand!! THANK YOU!!
This is the first time I liked all the comments because the video was just awesome. My lol teacher was still confusing me. But I am just cleared now. Thanks sir.🙏🙏🙏😃
thank you so much for the video!!!! this is the best method i've come up across in converting si units and i'm very sure it's going to benefit me well, thanks a whole lot!
Thank you so much! Greatly appreciated! This was explained so well and I now feel confident walking into my test in a couple of days! Keep up the great work😁
I wanted to thank you so much , this helped me learn something that I could never understand. I am pretty sure I got a good grade because of this, BIG thank you
Brilliant! Thank you for this clear explanation. I never thought of it this way before. I have just accepted the 10 to the power as given. Now it all make sense!
Thanks so much for this video!!! It cleared up a point of confusion that I had for many years!!! Really appreciate you taking the time to help people out!!!
I cannot thank you enough my chem professor could not explain this to me for shit and you just saved my mind from endless hours of frustration THANK YOU
theabomination _ then i would appreciate it if you know how to convert from nm to m? I followed his same steps but my final answer was different from my teacher's. For example: change from 10nm to m
Thank you for your videos. They are clear and accurate. A suggestion for the conversion between modified metric units: instead of subtracting and adding the powers, it is easier just to "plug them in" on the opposite sides like 10^-3 nm / 10^-9 mm . Then you can execute the calculations. Students should know to use the power on the "opposite" side of the prefix, like in 1nm/10^-9m, so it would be easier just to tell them to use the powers on the opposite side when going from prefix to prefix.
Thanks for the suggestion! That seems like a straightforward method once the reversing of the powers is mastered, but that makes me uneasy. I feel that could be an obstacle with many students, especially given that reversing the powers eliminates the "number sense" of relating the two units, which makes your method rote. Perhaps it depends on the math level of the student and their own "number sense." Definitely food for thought.
Always subtract the lower number from the higher number, which makes it always positive. Also remember if the number is negative, the lower negative is the one with the larger number, for example, -9 is lower than -2, so the subtraction would be -2 - (-9) = 7
I got confused at that part of the video, I understand how you got the 7 for the scientific notation, however, why does the answer have one that says -6. That is really confusing me and it would be great if you can explain it to me.
When dividing a smaller number by a larger number the answer is always less than 1. Here, 18.2 is being divided by 10000000, or 10^7; both numbers are positive, so the answer will be much less than one but still positive (greater than zero). 10^-6 is close to zero but still positive, it is 0.000001.
the number was on the bottom. The 7 turned to a -7. Then when he moved the decimal over one to the left, which added a positive number to the -7 and resulted in the -6.
did you have a tutorial on how to rules of the exponents? This is why I kept getting the answer wrong, I didn't know you had to add the exponents. I thought I could just times it by the 10 to whatever.
At 3:58 why did you put 18.2 nm * 1 cm / 10^7 = 1.82 * 10^-6?? why didn't you keep it as 18.2 * 10^7 ? is it because since it's in the denominator, it needs a negative exponent to show we are dividing ??
Sorry it took a while to get back. When dividing by a positive exponent (= dividing by a large number) the result is a small number. And dividing by a large exponent, in this case 10^7, is exactly the same as multiplying by its inverse, which is 10^-7. Notice the exponent is still the same, however it is now negative instead of positive, which gives the same small number as if you were dividing. NOW, the answer could have been written as 18.2 * 10^-7, which would be correct. I moved the decimal to the left one digit, so it is now 1.82, to follow the convention of writing scientific notation with the decimal after the first number. This makes the coefficient ten-fold smaller than 18.2, and so to compensate and keep everything equal, the exponent must become ten-fold larger: 10 x 10^-7 = 10^-6. So 18.2 x 10^-7 = 1.82 x 10^-6. Hope that makes sense.
Cubic centimeter is same as milliliter. One does not use prefixes larger than kilo with meter or gram. One does not use even kilo with the liter. 1000 kilograms is a tonne and 1000 liters is a cubic meter. Prefixes deci and centi should be avoided especially on technical contexts. They have some established uses - especially sound volume is always given as decibels and never just bels.
The liter is a popular usage name (last 200+ years) of a cubic decimeter. So milliliter, or 'millicubicdecimeter,' makes less sense than cubic centimeter. Liter is not an SI unit, and so it follows that milliliter is not used. Also, to interchange liters and cubic meters seems to complicate things, since it can be mathematically deduced that there are 1000 cubic decimeters in a cubic meter, whereas there is no obvious connection between liters and cubic meters. The word tonne is defined via kilograms, it is 1000 kilograms as you say, but tonne is not used in SI, so in SI it would be 1000 kilograms. In technical usage, SI reigns, and in particular it has spilled into popular usage with such terms as gigabytes and terabytes, and nanometers (for nanotechnology) and microgram (dosages of prescription medication) and megapixel (digital camera CCDs), and gigawatt is the common measure for power plant output, and the amount of megahertz of an FM radio broadcast became part of the name of a radio station, etc., etc. The prefixes and their usage were devised by SI.
At 4:08, why did you reduce 18.2 x 10 ^7 to 1.82 x 10^ -6 ? I am not understanding why that happened and how do I identify to do that for other problems?
It is not really a "reduction." It is the same number. I moved the decimal since in scientific notation the convention is to have the decimal after the first number. The two numbers, 18.2 x 10^-7 and 1.82 x 10^-6 are the same number. If the decimal is moved one digit to the left, that reduces the number by a factor of ten. So I then increased the exponent by a factor of ten to keep the entire number the same value. 10^-6 is a factor of ten greater than 10^-7, so 18.2 x 10^-7 = 1.82 x 10^-6. It would also be correct to leave it as 18.2 x 10^-7 since it is the same number.
![Learn Metric Units & Unit Conversions (Meters, Liters, Grams, & more) - [5-8-1]](http://i.ytimg.com/vi/T8WZU1QqSgI/mqdefault.jpg)
My proff took 2 lectures to explain and still managed to confuse everyone. Thank you so much.
😭😭😭😭😭😭😭
Professor? You did this in college I’m did this in early freshman year 😮
BAE THANK U SM ALL MY TEACHER DOES IS BREATHE LOUDLY INTO THE MIC AND I HAVE A QUIZ TMRW 🤧🙏
Same shit I swear
You have to be Bahamian
Torei Bowe i look like i’m from the bahamas?
How did you do? I'm taking this class now?
Qalamul Akbar my grade actually turned out to be rlly good in chem i think cuz this was taught in the beginning of the year i just didn’t rlly transition from summer
Ty for saving my life
I swear the textbooks just converted and never explained and it looked so simple but I was still so confused and this broke it down perfectly. Thanks!!
Thank you so much for posting this. This was one of the first lessons in chemistry, which I was not getting at all until seeing your video, and my teacher continues to give us problems that require conversions and I'm getting them every time. You have saved my grade.
Holy crap! After going through several TH-cam videos and meeting with my professor to explain the metric system, you by FAR explained it so I can understand. Thank you, thank you, thank you!!!!!!
Spending an hour trying to find this video after a year was actually well worth it. Only method that works for me Thank you!
Wow, out of the 20 videos regarding metric conversion your method is the one I'm going with, took me 2-3 tries but I got it now no problem, thank you!
Great! Thanks for watching!
I've seen too many "methods" and "explanations" for prefix conversion. Thanks so much for posting. This makes sense!
My teacher taught us this topic awhile ago and I was left dumbfounded. Finally I get it and I'm just so happy I found this video!! Thank you so much!!
yes my teacher does well explaining i just needed this video for a refresh
meat riding
Wow, of all the times I've encountered SI Conversions and repeatedly failed to understand the topic, you broke it down the best for me to finally understand it once and for all! Thanks so much!
thank for this!!! finally someone who clearly explains and visualizes that a prefix can be attached to any base (gram/ meter)!!
Thank you, thank you, thank you, thank you! You've saved my life!
I love you
wish my teacher made videos like this for people who forgot the subject entirely. Nobody asks questions and I'm sure its because they are to shy. anyways thanks for making this video it helps lots.
i was really confused on these prefixes thanks for the help man.
out of almost 5 vids I watch, this is the only one I understand, I spent 3 hours with the other vids and all it took for me to understand this from his vid is 10minutes..... thank you so much
Thanks!! I spend one hour searching for a good explanation video!! and I can say that this is the best explanation
Thank you so much!! I've been struggling to understand how to do this and have watch so many other videos, yours made to so simple and easy to understand!! THANK YOU!!
This is so much easier than the 2 step conversion my professor is teaching us. Thank you!
Awesome. Your method works beautifully. Far far far beyond what I was taught. Thank you so much!
I've spent 3 hours on this topic and this is the best video hands down! Keep it up.
thanks!
5 years after taking your class and your videos are still very helpful! Thanks, DW!!
Hi Allison! Thanks so much and hope all is well!
Thank you soo much for this video! currently studying for a final and this video just might have saved my grade :D
This is the first time I liked all the comments because the video was just awesome. My lol teacher was still confusing me. But I am just cleared now. Thanks sir.🙏🙏🙏😃
GREAT! Thanks so much! Best method I've seen.
Excellent method! I've been struggling with how we were taught in class and this toppled my hours of confusion in just a few minutes. Thank you!!
Yassss you are a lifesaver 🙏🏼🙏🏼 better explanation than my prof and the book!!
This is so far the best method I've ever learned for converting metric prefixes! Thank you so much for sharing this clever method, we owe you a lot!
You're welcome! I'm glad it helped!
Thank you so much for this! I’m having my Chemistry test tomorrow 😭
thank you so much for the video!!!! this is the best method i've come up across in converting si units and i'm very sure it's going to benefit me well, thanks a whole lot!
Thank you so much! Greatly appreciated! This was explained so well and I now feel confident walking into my test in a couple of days! Keep up the great work😁
Thank you!
THANK YOU SO MUCH THIS IS THE ONLY VIDEO THAT ACTUALLY MAKES SENSE ❤❤
❤️
I got this faster than listening to my teacher discussing the topic for an hour... thanks!
I wanted to thank you so much , this helped me learn something that I could never understand. I am pretty sure I got a good grade because of this, BIG thank you
I have an exam tomorrow, you saved me, I finally got it!
Finally someone who explains it sensibly!
This video really helped me with understanding how to go from unit to next. Thank you so much.
Thank you for the simple explanation! I’m studying for my chemistry test retake tomorrow.
bro my mind is blown!!! this made it super easy I was not getting it one bit , you my friend are like baby jesus!
Thanks man! This explanation was the easiest and most clear I've found.
Glad it helped!
This helped me understand this concept so much! Thank you for the video!
Brilliant! Thank you for this clear explanation. I never thought of it this way before. I have just accepted the 10 to the power as given. Now it all make sense!
Thanks!
thanks so much I am a pharmacy student and all my studies depend on this , you are a life saver
😊
Thanks so much for this video!!! It cleared up a point of confusion that I had for many years!!! Really appreciate you taking the time to help people out!!!
You're welcome!
Another good one! Thanks for posting!
This is my first comment and I have been struggling with conversions since the beginning this is the first time that I have been so clear
where did he get this "-6" in one problem? please help, we have exams and I still don't get this metric prefixes.
Just a Commenting guy . . . He moved the decimal point from 18.2 to 1.8 × 10¹
Ali Imran
A bit late I know, but if he doesn't know metric units, he probably doesn't know standard form
so how was the exam lol
18.2×10^-7 = 1.82×10^-6
So, how was the exam?
@@aesir4134 OMG now I get why it suddenly become 1.82
Thank You so much. It's now that I see the light after so many years
Glad it helped
luv yer vids!! This is great, clear, to the point, easy to use.
Been struggling with converting for way too long u probably wont read this but i really appreciate your help
I read it, and thanks, happy to help!
Thank you very much for this video, I was extremely confused until I watched this video.
I cannot thank you enough my chem professor could not explain this to me for shit and you just saved my mind from endless hours of frustration THANK YOU
theabomination _
then i would appreciate it if you know how to convert from nm to m? I followed his same steps but my final answer was different from my teacher's. For example: change from 10nm to m
Thank you so much. This explanation is the most easiest and quickest. I really do appreciate. Would not have understood this if it weren't for you.
I’m having a quiz tomorrow and I didn’t understand shit about metric prefixes but now,thank youu I’m sure I’ll pass the quiz tomorrow
Thank you for your videos. They are clear and accurate. A suggestion for the conversion between modified metric units: instead of subtracting and adding the powers, it is easier just to "plug them in" on the opposite sides like 10^-3 nm / 10^-9 mm . Then you can execute the calculations. Students should know to use the power on the "opposite" side of the prefix, like in 1nm/10^-9m, so it would be easier just to tell them to use the powers on the opposite side when going from prefix to prefix.
Thanks for the suggestion! That seems like a straightforward method once the reversing of the powers is mastered, but that makes me uneasy. I feel that could be an obstacle with many students, especially given that reversing the powers eliminates the "number sense" of relating the two units, which makes your method rote. Perhaps it depends on the math level of the student and their own "number sense." Definitely food for thought.
You explain it better than my teacher. Thank you so much!
thank you so much, you literally saved my life
i cant even explain thank you so much for this my teacher was shit at explaining this and i have a physics test in 2 days
aw do you want a fungi to cheer you up 🥺
@@emili494 arent you dating that boy called stanley?
Old is gold 🏆
Definitely the best video on this topic, thank you!
Thankyou!!! I'm doing a Bsc at the moment and this was frying my head. 👍
Thank you so much it was stuck in my head since years now
How do you decide the order in which to subtract exponents? Does the result always have to be positive?
Always subtract the lower number from the higher number, which makes it always positive. Also remember if the number is negative, the lower negative is the one with the larger number, for example, -9 is lower than -2, so the subtraction would be -2 - (-9) = 7
I got confused at that part of the video, I understand how you got the 7 for the scientific notation, however, why does the answer have one that says -6. That is really confusing me and it would be great if you can explain it to me.
When dividing a smaller number by a larger number the answer is always less than 1. Here, 18.2 is being divided by 10000000, or 10^7; both numbers are positive, so the answer will be much less than one but still positive (greater than zero). 10^-6 is close to zero but still positive, it is 0.000001.
FINALLY SOMETHING BRILLIANT!!! THANK YOU SO MUCH
Explained it better than my A level physics book which seemed to over complicate it!👌 cheers 👍
Thanks!
Thank you so much for uploading this video. Big help!
I never write comments, but this just saved my butt! Thanks so much!
THANK YOU YOU SAVED MY LIFE I SWEAR
Thank man ❤️❤️
Helped me alot in my secondary school
Love from Egypt
مرحبا بك. أنا سعيد لأنها ساعدت!
Im a bit confused with why the decimal was moved. it went from 10^7 ... 10^-6. I was with you until that part
Yeah me too but then I realised, It's just a mistype..It's supposed to be 10^(-7) actually
I know I'm late but well, better late than never dawg
I know I'm late but well, better late than never..
the number was on the bottom. The 7 turned to a -7. Then when he moved the decimal over one to the left, which added a positive number to the -7 and resulted in the -6.
Michelle Rubio why did the 7 turn to -7??
You saved my life. Why can't college professors explain it this easily - God knows...
did you have a tutorial on how to rules of the exponents? This is why I kept getting the answer wrong, I didn't know you had to add the exponents. I thought I could just times it by the 10 to whatever.
Explained in easy and clear way . TQ so much .
finally someone who knows what am searching for thanks bro ur explanations were rlly good and simple/keep up the good work #crashchemistryacademy
NAHHH THANK YOU FOR THIS LITERALLY NEVER COMMENT ON ANY VIDEOS BUT THIS EXPLAINED EVERYTHING PLS I THANK YOU I UNDERSTANDTHIS NOW😊😊😊
😊
Could someone explain to me why we put 10^-6 in example 2?
THANK YOU, I was being mutilated by homework I didn’t know how to do, until I watched this video.
Have an exam with this tomorrow and my teacher never taught the topic, so thank you
6 hours left until my exam help
at 4:09 how did the "" 1 cm over 10^7 nm "" turn into "" 10^-6 "" ???????????????
Thank you very much for producing this video. It is very easy to follow with clear understanding
omg! it was amazing lecture i had! thank you for enlightening me
Thank u sir but could you please make a video converting 1Litre to cm³ by this method
1 litre = 1 dm^3 so you can use that-- convert 1 dm^3 to cm^3. The end of the video addresses cubed units, starting at 6:10
At 4:17 how tf did u get from 10 ^ 7 to 10^-6
keep on the good work
Watching this the night before my university physics exam 💖
Can you explain how did it become -6 exponent in this part? 4:22
Use scientific calculator
Excellent Method Dear
Love you
Stay Blessed
Thanks very much!
After tera- (trillion 1*10^12) followed by peta- (quadrillion 1*10^15), exa- (quintillion 1*10^18), zetta- (sextillion 1*10^21), yotta- (septillion 1*10^24), xenna- (octillion 1*10^27), weka- (nonillion 1*10^30), vendeka- (decillion 1*10^33), udeka- (undecillion 1*10^36), tradeka- (duodecillion 1*10^39), sorta- (tredecillion 1*10^42), rinta- (quattuordecillion 1*10^45), quexa- (quindecillion 1*10^48), pepta- (sexdecillion 1*10^51), ocha- (sepdecillion 1*10^54), nena- (octdecillion 1*10^57)
At 3:58 why did you put 18.2 nm * 1 cm / 10^7 = 1.82 * 10^-6?? why didn't you keep it as 18.2 * 10^7 ? is it because since it's in the denominator, it needs a negative exponent to show we are dividing ??
Sorry it took a while to get back. When dividing by a positive exponent (= dividing by a large number) the result is a small number. And dividing by a large exponent, in this case 10^7, is exactly the same as multiplying by its inverse, which is 10^-7. Notice the exponent is still the same, however it is now negative instead of positive, which gives the same small number as if you were dividing. NOW, the answer could have been written as 18.2 * 10^-7, which would be correct. I moved the decimal to the left one digit, so it is now 1.82, to follow the convention of writing scientific notation with the decimal after the first number. This makes the coefficient ten-fold smaller than 18.2, and so to compensate and keep everything equal, the exponent must become ten-fold larger: 10 x 10^-7 = 10^-6. So 18.2 x 10^-7 = 1.82 x 10^-6.
Hope that makes sense.
literally think this is such an amazing method thank you so much
Cubic centimeter is same as milliliter. One does not use prefixes larger than kilo with meter or gram. One does not use even kilo with the liter. 1000 kilograms is a tonne and 1000 liters is a cubic meter. Prefixes deci and centi should be avoided especially on technical contexts. They have some established uses - especially sound volume is always given as decibels and never just bels.
The liter is a popular usage name (last 200+ years) of a cubic decimeter. So milliliter, or 'millicubicdecimeter,' makes less sense than cubic centimeter. Liter is not an SI unit, and so it follows that milliliter is not used. Also, to interchange liters and cubic meters seems to complicate things, since it can be mathematically deduced that there are 1000 cubic decimeters in a cubic meter, whereas there is no obvious connection between liters and cubic meters. The word tonne is defined via kilograms, it is 1000 kilograms as you say, but tonne is not used in SI, so in SI it would be 1000 kilograms. In technical usage, SI reigns, and in particular it has spilled into popular usage with such terms as gigabytes and terabytes, and nanometers (for nanotechnology) and microgram (dosages of prescription medication) and megapixel (digital camera CCDs), and gigawatt is the common measure for power plant output, and the amount of megahertz of an FM radio broadcast became part of the name of a radio station, etc., etc. The prefixes and their usage were devised by SI.
i thought there was a hecto. i dont see it on your diagram at 3:01? am i wrong?
Thank you.... This was so helpful
Complete lifesaver🙌😭
At 4:08, why did you reduce 18.2 x 10 ^7 to 1.82 x 10^ -6 ? I am not understanding why that happened and how do I identify to do that for other problems?
It is not really a "reduction." It is the same number. I moved the decimal since in scientific notation the convention is to have the decimal after the first number. The two numbers, 18.2 x 10^-7 and 1.82 x 10^-6 are the same number. If the decimal is moved one digit to the left, that reduces the number by a factor of ten. So I then increased the exponent by a factor of ten to keep the entire number the same value. 10^-6 is a factor of ten greater than 10^-7, so 18.2 x 10^-7 = 1.82 x 10^-6. It would also be correct to leave it as 18.2 x 10^-7 since it is the same number.
Incredibly helpful by FAR
Thanks!
Thanks this helped so much for my physics test
Thank u a lot 😭😭💛💛you're the best
Wow the absolute best explanation
4:04 where did you get that 10 to the power of -6? I don't understand. Please explain.
It is just the division-- if you divide 18.6 by 10^7, you get 1.86 x 10^-6.
thank you so much for this video it's very helpful