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kaylala

  • one year ago

How many grams is 1 a.m.u. ? (please provide or show a Detailed SOLutioN) Thanks!

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  1. thomaster
    • one year ago
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    An atomic mass unit is equal to 1.66053892 × 10^-27 kilograms

  2. shkrina
    • one year ago
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    http://answers.yahoo.com/question/index?qid=20090107072739AA1Pe1D hope it helps ...

  3. kaylala
    • one year ago
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    @thomaster so, how do you compute for the grams?

  4. thomaster
    • one year ago
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    What do you mean? what 1 amu is in gram? That's \(\large\sf 1.66053892 × 10^{-24}\) gram

  5. kaylala
    • one year ago
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    @thomaster what is 1 amu in gram? --- this is what i meant now, how did you get 1.66 x 10^-24 gram? i need the solution too. if you may

  6. thomaster
    • one year ago
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    It is just a constant, you can't calculate it. A long time ago they decided to take the mass of carbon-12 and divide that by 12 to get 1 amu.

  7. kaylala
    • one year ago
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    @thomaster but how come my book has a derivation / solution of how to know how much is 1g in amu? see the attached picture below:

  8. kaylala
    • one year ago
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    HERE IS THE SOL'n

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  9. thomaster
    • one year ago
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    that's the relationship between the amu mass and avogadro's number Avogadro's number is the amount of particles in 1 mole of a compound. Like it says in your book, 1 gram is avogadro's number in amu You could solve this with a crosstable |dw:1372679331655:dw|

  10. kaylala
    • one year ago
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    ok. i got it thanks @thomaster

  11. thomaster
    • one year ago
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    No problem :)

  12. kaylala
    • one year ago
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    @thomaster wait a minute. i'm mixed up how's you get 1.66x10^-24? when we're supposed to find how many grams is in 1 amu?

  13. kaylala
    • one year ago
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    @thomaster if the answer is 1.66x10^-24; then how did you get 1.66x10^-24 as your solution variable?

  14. thomaster
    • one year ago
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    1 divided by avogadro's number = 1.66*10^-24

  15. thomaster
    • one year ago
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    because 6.022*10^23 amu = 1 gram

  16. kaylala
    • one year ago
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    @thomaster where did 1 come from?

  17. kaylala
    • one year ago
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    what's the precise formula?

  18. kaylala
    • one year ago
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    what's the precise formula? and the summary of all? @thomaster

  19. thomaster
    • one year ago
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    It's explained here: |dw:1372682633203:dw|

  20. thomaster
    • one year ago
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    since 1*1 = 1 that's where the 1 comes from

  21. kaylala
    • one year ago
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    ok thanks again for clarifying :))))))

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