La nicotina, extraida a partir de las hojas de tabaco, es un liquido completamente miscible con agua a temperturas inferiores a 60°c krh20 (constante crioscopica)= 1,86
a) cual es la molalidad de la nicotina en una disolucion acuosa que empieza congelar a los -0,450°c

b) si la disolucion se obtiene disolviendo 1,921 (g) de nicotina en 48,92 g de h2o. ¿cual debe ser la masa molar de la nicotina?

In the haber reaction, patented by german chemist fritz haber in 1908, dinitrogen gas combines with dihydrogen gas to produce gaseous ammonia. this reaction is now the first step taken to make most of the world's fertilizer. suppose a chemical engineer studying a new catalyst for the haber reaction finds that 671 liters per second of dinitrogen are consumed when the reaction is run at 271c and 0.99atm. calculate the rate at which ammonia is being produced. give your answer in kilograms per second. round your answer to significant digits.