or the weak acid, write an expression for the acid ionization constant Ka. For the weak acid, write an expression for the acid ionization constant . Ka=[H3O+][HSO2−][H2SO3] Ka=[H3O+][HSO3−][H2SO3] Ka=[H3O+][HSO3−][SO32−][H2SO3] Ka=[H3O+][HSO2−][SO22−][H2SO3]

Write a paragraph at least 10 sentences explaining how rocks are used today in society

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.