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Mass equivalent to one hydrogen atom?

  1. Apr 21, 2009 #1
    1. The problem statement, all variables and given/known data
    If the mass of a hydrogen atom is 1.67*10-27kg and the mass of an electron is 9.1*10-31kh, how many electrons would be required to have a mass equivalent to one hydrogen atom?


    2. Relevant equations



    3. The attempt at a solution
    I tried dividing them into each other but I got some weird answer which didn't seem like it was right.
     
  2. jcsd
  3. Apr 21, 2009 #2

    LowlyPion

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    What did you get that was weird?
     
  4. Apr 21, 2009 #3
    1.835x10^(-28)
     
  5. Apr 21, 2009 #4

    LowlyPion

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    The 1.835 looks OK.

    But 10-27/10-31 = 104 and then there is the 10-1 from the division itself.
     
  6. Apr 21, 2009 #5
    I wonder what I did wrong.

    So you are saying it is 1.835x10^3
     
  7. Apr 21, 2009 #6

    LowlyPion

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    I'm not saying it.

    The math is.
     
  8. Apr 21, 2009 #7
    I really dont know what I did that was wrong. The answer I submited was 1835 which was correct. I appreciate the help on such a simple question.

    I took math up to calc so I should have figured that out. . . sad. . .
     
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