4- Summer16 LOPEZ/OLSON Actvities and Due Dates 1 Salls Practice Video C Sapling

Question

4- Summer16 LOPEZ/OLSON Actvities and Due Dates 1 Salls Practice Video C Sapling LearningI CUNY. Lehman College-CHEM 11 O Assi Availal Due D Points Grade Descri Policie Gradebook s Attempts Score Attempts Score 7/1/2016 11:55 PM003 Pint Caiculatord Periodic Table Question 2 of 3 Map Sapling Learning A monoprotic acid, HA, is dissolved in water HA+H,O H,0 e equit num concentrations of the reactants and products are HA] 0.120 M HO"-4.00*10 *M A] 4.00*10 M You ca You ca up on You ca you ge There i Caloulate the K value for the acid HA O eTex O Help Web O Tech

Explanation / Answer

Ka = [H3O+][A-]/[HA]

with the equilibrium concentrations given above,

Ka = (4 x 10^-4)^2/0.120 = 1.33 x 10^-6

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