QuestionJuly 2, 2025

Which of the following is the correct way to describe the ratio o volumes of the substances in the chemical equation? 2NH_(3)(g)arrow N_(2)(g)+3H_(2)(g) 2 molecules NH_(3):1 mole N_(2):3 formula units H_(2) 3LNH_(3):2LN_(2):2LH_(2) 3molesNH_(3):1moleN_(2):3molesH_(2) 2LNH_(3):1LN_(2):3LH_(2)

Which of the following is the correct way to describe the ratio o volumes of the substances in the chemical equation? 2NH_(3)(g)arrow N_(2)(g)+3H_(2)(g) 2 molecules NH_(3):1 mole N_(2):3 formula units H_(2) 3LNH_(3):2LN_(2):2LH_(2) 3molesNH_(3):1moleN_(2):3molesH_(2) 2LNH_(3):1LN_(2):3LH_(2)
Which of the following is the
correct way to describe the ratio o
volumes of the substances in the
chemical equation?
2NH_(3)(g)arrow N_(2)(g)+3H_(2)(g)
2 molecules NH_(3):1 mole N_(2):3 formula units H_(2)
3LNH_(3):2LN_(2):2LH_(2)
3molesNH_(3):1moleN_(2):3molesH_(2)
2LNH_(3):1LN_(2):3LH_(2)

Solution
4.0(214 votes)

Answer

\(2 \mathrm{LNH}_{3}: 1 \mathrm{LN}_{2}: 3 \mathrm{LH}_{2}\) Explanation 1. Identify the stoichiometric coefficients The balanced chemical equation is \(2 \mathrm{NH}_{3}(\mathrm{~g}) \rightarrow \mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g})\). The coefficients are 2 for \(\mathrm{NH}_{3}\), 1 for \(\mathrm{N}_{2}\), and 3 for \(\mathrm{H}_{2}\). 2. Determine the volume ratio According to Avogadro's law, equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. Therefore, the volume ratio is directly proportional to the stoichiometric coefficients. 3. Match with given options The correct volume ratio based on the coefficients is \(2 \mathrm{LNH}_{3}: 1 \mathrm{LN}_{2}: 3 \mathrm{LH}_{2}\).

Explanation

1. Identify the stoichiometric coefficients<br /> The balanced chemical equation is \(2 \mathrm{NH}_{3}(\mathrm{~g}) \rightarrow \mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g})\). The coefficients are 2 for \(\mathrm{NH}_{3}\), 1 for \(\mathrm{N}_{2}\), and 3 for \(\mathrm{H}_{2}\).<br /><br />2. Determine the volume ratio<br /> According to Avogadro's law, equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. Therefore, the volume ratio is directly proportional to the stoichiometric coefficients.<br /><br />3. Match with given options<br /> The correct volume ratio based on the coefficients is \(2 \mathrm{LNH}_{3}: 1 \mathrm{LN}_{2}: 3 \mathrm{LH}_{2}\).
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