NIKITA

Phosphoric acid is triprotic acid (three ionizable hydrogens). The values of its stepwise ionization constants are Ka1= 7.5E-5, Ka2= 6.2E-8, and Ka3= 4.2E-13 1) Write the chemical equation for the first ionization reaction of phosphoric acid with water 2)...

SPPECH ABOUT TRADITIONAL HEALERS SHOULD BE ALLOWED TO PRACTISE AND PRESCRIBE MEDICINE IN HOSPITALS AND CLINICS

I don't understand how to do the first one. I really don't know how to do reactions

tanA secA + tanA + tanA secA – tanA / (secA-1)( secA+1) = 2 tanA secA / sec2A -1 = 2 tanA secA / tan2A = 2 secA/ tanA = 2 cosA/ sinA * cosA = 2 / sinA = 2 cosecA

(sinA/cosA)/ sinA = 1/cosA = secA