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anonymous

  • one year ago

URGENT PLEASE !! What is the mass, in grams, of a sample of 6.98 × 10^24 atoms of magnesium (Mg)? Show your work or explain the steps that you used to determine your answer.

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  1. anonymous
    • one year ago
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    @dan815 @Hero @larryboxaplenty @pooja195

  2. dan815
    • one year ago
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    you know the mass it says for Mg on the periodic table?

  3. anonymous
    • one year ago
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    No.. I dont really know anything about this. Im not good at chemistry. I just started the course.

  4. anonymous
    • one year ago
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    find out how many atoms are in 1 mole of Mg, than convert that into grams

  5. anonymous
    • one year ago
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    Ex - Hydrogen has an atomic mass of 1.008, and therefore 1.008 moles of Hydrogen has 6.022 *10^22 atoms

  6. anonymous
    • one year ago
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    ** If I remember correctly

  7. anonymous
    • one year ago
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    Atomic mass if slightly different dependent on your periodic table (google says something slightly different than your table usually does - usually with more sig figs)

  8. anonymous
    • one year ago
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    Lets say you have 3.45*10^24 atoms of hydrogen - how many grams is that?

  9. anonymous
    • one year ago
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    does 6.98 x 10^24 = 28.2 g

  10. anonymous
    • one year ago
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    \[3.45*10^{24} atoms \times \frac{ 1 mole H }{ 6.022*10^{24} atoms } \times \frac{ 1.008g }{ 1mole H }\]

  11. anonymous
    • one year ago
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    was does it say the weight it for Mg?

  12. anonymous
    • one year ago
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    *it should be 6.022*10^23

  13. anonymous
    • one year ago
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    I need to leave - I need to continue studying botany. If my math was wrong - I'm sure someone will say something.

  14. anonymous
    • one year ago
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    *math was for my example only

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