Avogadro's Number, The Mole, Grams, Atoms, Molar Mass Calculations - Introduction
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- Опубліковано 21 сер 2016
- This general chemistry video tutorial focuses on avogadro's number and how it's used to convert moles to atoms. This video also shows you how to calculate the molar mass of a compound and how to convert from grams to moles. This video contains plenty of examples, notes, and practice problems that you help you complete your next worksheet assignment.
Full-Length Math & Science Videos:
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Introduction to Moles:
• Introduction to Moles
How To Calculate The Molar Mass:
• How To Calculate The M...
How To Convert Grams to Moles:
• How To Convert Grams T...
How To Convert Moles to Grams:
• How To Convert Moles t...
Moles to Atoms Conversion:
• Moles To Atoms Convers...
Grams to Molecules Conversion:
• Grams to Molecules and...
_________________________________
Grams to Atoms:
• How To Convert Grams t...
Moles, Atoms, & Grams Conversions:
• How To Convert Between...
How To Balance Chemical Equations:
• How To Balance Chemica...
Stoichiometry - Basic Introduction:
• Stoichiometry Basic In...
Avogadro's Number:
• Avogadro's Number, The...
_________________________________
Limiting Reactant Problems:
• Limiting Reactant Prac...
Excess Reactant Problems:
• How To Find The Amount...
Theoretical & Percent Yield:
• How To Calculate Theor...
Percent Yield - More Examples:
• How To Calculate The P...
Percent Error:
• Percent Error Made Easy!
_________________________________
Percent Composition By Mass:
• Percent Composition By...
Empirical Formula Problems:
• Empirical Formula & Mo...
Empirical Formula - Hydrated Compounds:
• How To Find The Empiri...
Combustion Analysis:
• Introduction to Combus...
Stoichiometry Practice Test:
• How To Solve Stoichiom...
_______________________________________
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At about minute 8:00 it has to be 2.4x10^24, not 2.4x10^23.Nevertheless, keep on the good work. :)
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@@yume6742 heyy can you help? in the 1st conversion he's saying to convert moles to atoms...so atomic no. or atomic mass? idgi T.T
In around the 8th minute, the formula unit should be 2.4x10^24 and the no. of Cl ions should be 7.2 x 10^24 as you add one unit of exponent when you move a decimal point to the left
yeah
Ok thanks
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no it's 7.2 x 10^25
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i got a question. at around 14:55, he didnt finish calculating, why did he skip the actual calculation, and went straight to converting moles to atoms?
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I've learnt that m = n x M and n = m/M are formels that you can use when you want the mole mass, mass or the amount of substance.
For example: Calculate the amount of substance for 750g propan.
Propan= C3 H8
12x3 + 1,01x8 = 44,08
750/44,08 = 17,01 g/mol
Also I understood the video very well!
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In the beginning of the video you said that the value of the mole is *6.02x 10^23 but it should be 6.022x 10^23!!. as mentioned in our book .
Even I searched in the web and got the answer as 6.022x10^23*.
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This really helped! I could not get it in class the reason why the 10^# was changing from 23 to 24. Now i get it! test tomorrow!
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The explanation of Avogadro's number and molar mass is the best that I have seen. Great job. There is an error at about 8 minutes. Should be 10^24 not 10^23. This is minor issue - just pointing it out for others in case they notice it.
thx
8:00 why ? It should be equal 2.4 ×10^24 cause we added a 10 to 24 × 10^23
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For those who are confused
6.02x10²³ = 602hexillion
So it's a unit of measure.
Half a dozen apple = 6 apples
A dozen apples = 12 apples
A mole of apples = 602hexillion apples or 602,000,000,000,000,000,000,000 apples.
My brain is hurting even more
@@liutjinsiu9689 same
That didnt help a bit lol🤣.
We are confused still 😕
@@asadasadasadsalem7690 it’s basically just a unit of measurement! It’s confusing because it’s such a massive unit of measurement, but if you just think of it as 6.02E23 it becomes a lot easier! If you try and just see it as a simple unit of measurement that has a large sum it will probably become a lot easier to understand :) hope this helps anyone in the future in the comment stream, let me know if you want me to explain more!
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Professor Organic Chemistry Tutor, thank you for an outstanding focus on Avogadro's Number and its usage in moles to grams and grams to moles conversations/calculations in AP/General Chemistry. Avogadro's Number is important in all levels of Chemistry. Professor Organic Chemistry Tutor, thanks to the viewers for finding and correcting the error(s) in this video.
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