For the reaction 6 li + n2 → 2 li3n , what is the maximum amount of li3n (34.8297 g/mol) which could be formed from 14.18 mol (6.941 g/mol) of li and 16.37 mol of n2 (28.0134 g/mol)? answer in units of mol.

The chemical composition of soil varies with depth. an article in communications in soil science and plant analysis describes chemical analyses of soil taken from a farm in western australia. fifty specimens were each taken at depths 50 and 250 cm. at a depth of 50 cm, the average no3 concentration (in mg/l) was 88.5 with a standard deviation of 49.4. at a depth of 250 cm, the average concentration was 110.6 with a standard deviation of 51.5. find a 95% confidence interval for the difference in no3 concentrations at the two depths.