객관식
In the reaction 4Al + 3O_2 → 2Al_2O_3, how many moles of O_2 are consumed when 8 moles of Al are reacted?
85
views
3. Chemical Reactions
Stoichiometry
Multiple Choice
In the balanced chemical equation for the synthesis of ammonia, N_2 + 3H_2 → 2NH_3, what is the mole ratio of hydrogen (H_2) to ammonia (NH_3)?
A
2:1
B
2:3
C
3:2
D
1:1
검증된 단계별 안내1
Identify the balanced chemical equation: \(\mathrm{N_2 + 3H_2 \rightarrow 2NH_3}\).
Look at the coefficients in front of \(\mathrm{H_2}\) and \(\mathrm{NH_3}\) to determine their mole ratio.
The coefficient for \(\mathrm{H_2}\) is 3, and the coefficient for \(\mathrm{NH_3}\) is 2.
Write the mole ratio of \(\mathrm{H_2}\) to \(\mathrm{NH_3}\) as \$3:2$ based on these coefficients.
This ratio means that 3 moles of hydrogen gas react to produce 2 moles of ammonia.
Related Videos
Related Practice
