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Atoms

Which sample ...

Question

Which sample contains the greatest number of nitrogen atoms? (All measurements are taken at STP.)

40 g NH₃(g)

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0.40 mol N₂ (g)

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0.20 mol N₂O₄ (g)

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80 g N₂O₄(g)

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Solution

The correct option is A
40 g NH₃(g)

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(N)

\times 10^{23}

6 \times 10^{23}

d = 0.75 g L^{- 1}

(d = 3 g L^{- 1})

(d = 1.5 g L^{- 1})

N \times 10^{23}

6 \times 10^{23}

d = 0.75 g L^{- 1}

(d = 3 g L^{- 1})

(d = 1.5 g L^{- 1})

N \times 10^{23}

6 \times 10^{23}

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