At the plant for the production of ammonia, with a capacity of 250 tons/day. nitrogen, the residual oxygen content of which is 0.8%. Practical cost of nitrogen-hydrogen mixture is 3000 m3 (0*C, 101325 Pa) for the production of 1 ton of H3. Calculate the daily air requirement (nitrogen and oxygen volumes of 80% and 20%, respectively) required for nitrogen production