Question

How many grams is 1 a.m.u. ?

(please provide or show a Detailed SOLutioN)

Thanks!

Answer 1

An atomic mass unit is equal to 1.66053892 × 10^-27 kilograms

Answer 2

http://answers.yahoo.com/question/index?qid=20090107072739AA1Pe1D
hope it helps ...

Answer 3

@thomaster

so, how do you compute for the grams?

Answer 4

What do you mean? what 1 amu is in gram?
That's \(\large\sf 1.66053892 × 10^{-24}\) gram

Answer 5

@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

Answer 6

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.

Answer 7

@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:

Answer 8

HERE IS THE SOL'n

Answer 9

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

Answer 10

ok. i got it

thanks @thomaster

Answer 11

No problem :)

Answer 12

@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?

Answer 13

@thomaster

if the answer is 1.66x10^-24; then how did you get 1.66x10^-24 as your solution variable?

Answer 14

1 divided by avogadro's number = 1.66*10^-24

Answer 15

because 6.022*10^23 amu = 1 gram

Answer 16

@thomaster

where did 1 come from?

Answer 17

what's the precise formula?

Answer 18

what's the precise formula?

and the summary of all?

@thomaster

Answer 19

It's explained here:

Answer 20

since 1*1 = 1
that's where the 1 comes from

Answer 21

ok thanks again for clarifying
:))))))