4 years ago

In the chemical symbol for nitrogen gas, N2, what does the “2” represent?

Chemistry

1 answer:

Vladimir79 [104]4 years ago

4 0

The 2 represets 2 nitrogen gas atoms

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Explanation:

Volume of NaOH = 1.7 ml = 0.0017 L

Molarity of NaOH = 0.0811 M

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$0.0811 M=\frac{n}{0.0017 L}$

n = 0.0001378 mol

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According to reaction, 2 mol of NaOH neutralize 1 mol of sulfuric acid.

Then 0.0001378 mol of NaOH will neutralize:

$\frac{1}{2}\times 0.0001378 mol=6.8935\times 10^{-5} mol$ of sulfuric acid.

Concentration of sulfuric acid in the acid rain sample: x

$x=\frac{6.8935\times 10^{-5}}{0.02 L}=0.0034467 mol/L$

Concentration of sulfuric acid in the acid rain sample is 0.0034467 mol/L.

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