CHEM 1406-221HY Intre x CHEM 1406-221HY Intro x C Chemistry question IChee CHEM

Question

CHEM 1406-221HY Intre x CHEM 1406-221HY Intro x C Chemistry question IChee CHEM 1406-221HY Intro X C pling 238494. Sapling Learnin apling Learning CHEM 1406-221HY Introductory Chemistry I- G. Johnson Activities and Due Dates Unit 10 Homewo My Assig 4/13/2016 02:00 PM 56.8/100 4/13/2016 o4:50 PM Gradebook Attempts score Print Calculator Periodic Table Question 12 of 20 A monoprotic acid, HA, is dissolved in water: The equilibrium concentrations of the reactants and products are HAJ 0.150 M UH 1 2.00 x 04 M CA 2.00 10-4 M Calculate the value of pKa for the acid HA. pK, Previous 3 Give Up & View Solution Check Answer Next D Exit Hint Resources Assignment Information Available From: 3/23/2016 06:00 PM 4/13/2016 02:00 PM Due Date: Late submissions: Allowed with 109 of the points possible deducted per day 04/23/2016 02:00 PM Points Possible: 100 Grade Category: Homework Description: Homework Late You can check your answers. You can view solutions when you complete or give up on any question You have five attempts per question. You lose 5% of the points available to each answer in your question for each incorrect attempt at that For multiple choice questions, the penalty depends on the number of choices available. O Help With This Topic O Web Help & Videos o Technical Support and Bug Reports O Logout Help

Explanation / Answer

K = [H+][A-]/[HA]

K = (2*10^-4)(2*10^-4)/(0.15)

K = 2.66666*10^-7

pKa = -log(KA) = -log( 2.66666*10^-7) =6.57403

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---