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21 December, 10:43

What volume does 8.5 g NH₃ occupy at STP?

a. 2.81 L

b. 5.61 L

c. 11.21 L

d. 22.41 L

e. 44.81 L

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Answers (1)
  1. 21 December, 14:00
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    First, convert grams to moles by dividing 8.5 by the molar mass of NH₃ (N=14, H=1)

    14+1+1+1=17

    8.5/17=.5 moles NH₃

    Multiply. 5 by the conversion factor of moles to L (22.4)

    .5*22.4=11.2 L NH₃

    11.2 is just 11.21 rounded down, so your answer is C) 11.21 L
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