Answer to Question #156652 in General Chemistry for insharah

Question

he nutrient solution for growing some vegetable and flower crops should contain a nitrate ion at a concentration of 12 mmol/l. Two salts have already been added to the solution: KNO3 and NH4NO3 at concentrations of 505 mg/l and 160 mg/l, respectively. How much Ca(NO3)2∙4H2O (in mg per 1 liter of solution) needs to be added to the solution to achieve the required concentration of NO3–? For calculations, use molar masses rounded to the nearest integer

Answer 1

1180 mg/l.