Pb(NO3)2 (aq) +2 KI (aq) –> PbI2 (s) + 2 KNO3 (aq)
Mezclamos 25 ml 3M de KI CON 15 ml de una disolución 4M de Pb(NO3)2. Calcula la cantidad de precipitado amarillo que se obtendrá .
El reactivo limitante sera el KI ( demuestralo)

datos de masas atomicas ; Pb= 207,2 I =126,9

Two things that biomedical has invented or innovated

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.