ter 15 Acids and bases changeditedcomple oad chapter 15 Acid

ter 15_ Acids and bases_ chang_edited_comple oad chapter 15, Acids and bases, chang_edited_complete.pdf (3.16 MB) Example 15.6 Calculate the pH of a (a) 1.0×10-3 M HCl solution (b) 0.020 M Ba(OH)2 solution reviouS 0

Solution

concentration of H⁺ in HCl is 1*10^-3

P^H=-log[H⁺]

P^H=-log[1*10^-3]=3

concentration of OH^- in Ba(OH)₂ is 2*0.02=0.04 as there are two hydroxide ions two is multiplied

P^OH=-log[OH^-]=-log[0.04]=1.397

p^H=14-P^OH

P^H=14-1.397=12.603

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