From the equation (N2 + 3H2 ↔ 2NH3), how many moles of NH3 are produced from 2.5 moles of N2?
Correct answer: C. 5 moles
- A. 2.5 moles
- B. 2 moles
- C. 5 moles
- D. 7.5 moles
Explanation
The ratio of N2:NH3 is 1:2 so if 2.5 moles of N2 are used 5 moles of NH3 should be formed provided that hydrogen is in excess HTtT
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About Moles and Avogadro's Number
The mole connects the microscopic number of particles with measurable mass, using Avogadro's number, 6.022 × 10²³ particles per mole. Questions involve molar mass, conversion between mass, moles and particles, percentage composition, empirical and molecular formulas, and distinguishing atoms, molecules, ions and formula units.
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