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28 May, 17:27

How many molecules are in 25.0 grams of NH3

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Answers (2)
  1. 28 May, 18:02
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    25 grams / (17 grams/mole) x 6.022x1023 molecules/mole = 8.9x1023 molecules
  2. 28 May, 20:00
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    I don't know if my expression is right but: 25g NH3 x 1 mol/17.04g NH3 x 6.022x10^23 molecules NH3/mol NH3.
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