Calculate the amount of oxygen needed to produce 60 L of nitric oxide (II) from ammonia. Gas volumes measured under identical conditions.

4NH3 + 5O2 = 4NO + 6H2O
The number of moles of oxygen = 5/4 * the number of moles of nitric oxide (II), and
volume of oxygen = 5/4 * volume of nitric oxide (II), which means
oxygen volume = 5 * 60/4 = 75 l

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.