
Ishaan K. answered 10/31/23
Experienced MCAT Tutor Helping Students Achieve MCAT Success!
Finding the Required Mass of N2 for a Chemical Reaction
Step 1: Balance the Chemical Equation
Given Reaction:
N2 + 3H2 -> 2NH3
Step 2: Convert grams of H2 to moles
- Molar mass of H2 = 2.02 g/mol
- Moles of H2 = 3.03 g / 2.02 g/mol = 1.5 moles
Step 3: Use mole ratio to find moles of N2
- The balanced equation shows a 3:1 mole ratio between H2 and N2.
- Moles of N2 = 1.5 moles H2 * (1 mole N2 / 3 moles H2) = 0.5 moles of N2
Step 4: Convert moles of N2 to grams
- Molar mass of N2 = 28.02 g/mol
- Grams of N2 = 0.5 moles * 28.02 g/mol = 14.01 grams
Conclusion:
You would need 14.01 grams of N2 to completely react with 3.03 grams of H2 according to the balanced chemical equation.