What is the pH of a buffer where the consent ration of the weak acid (HB)= 0.200 M the consent ration of its conjugate base (B-)= 0.250 M, and the acids pKa value = 4.75

Idon't really understand this can you me and show your work.☺☺[ chemistry b] subject [ electron transfer in lonic bonds]grade( 12)

How do limiting factors most affect population size? ostop population growthrestrict population growthincrease population sizeresult in positive impactso

La reaccion entre monoxido de nitrogeno (no) y oxigeno para formardioxido de nitrogeno (no2) es un paso determinante para la formacion del smog, la reaccion es la siguiente: 2no + o2 = 2no2 cual sera el numero de moles de no2 que se formaran por la reaccion completa de 8 moles de oxigeno con suficiente monoxido?