In the reaction of nitrogen gas, \( \mathrm{N}_{2} \), with hydrogen gas, \( \mathrm{H}_{2} \), to form ammonia gas, \( \mathrm{NH}_{3} \), how many moles of hydrogen are needed to react with two moles nitrogen? 10 moles 6 moles 8 moles 4 moles 2 moles Submit Request Answer

In the balanced chemical equation for the synthesis of ammonia, \( \mathrm{N}_2 + 3\mathrm{H}_2 \rightarrow 2\mathrm{NH}_3 \), it shows that one mole of nitrogen reacts with three moles of hydrogen. Therefore, if you have two moles of nitrogen, you would need \( 2 \times 3 = 6 \) moles of hydrogen to fully react. Don't forget, in reaction stoichiometry, balancing is key! Always start with a balanced equation before determining the number of moles needed. This ensures you account for all elements correctly and avoids the common mistake of miscalculating ratios.