Sapling Lerning Sapling LearningI CUNY, Lehman College CHEM 114-Summer16-LOPEZ/O

Question

Sapling Lerning Sapling LearningI CUNY, Lehman College CHEM 114-Summer16-LOPEZ/OLSON 1 Activities and Due DatesUnit 16 Skills Practice Video A My Assignment Gradebook (07/1/2016 11:55 PM 00/3 Print-Caculator Attempts Score Print Calulator Porodic Table -d Periodic Table Question 1 of 3 Sapling Learning Map Partela Mils at City University of New York CUNV, Lehman Colle What is the concentration of OH' and pOH in a 0.00052 M solution of Ba(OH)2 at 25 ? Assume complete dissociation. Number [OH-]= OH- Number

Explanation / Answer

The concentration of hydroxide ions in 0.00052 M Ba(OH)2 is 0.00104 M, because there are two moles of hydroxide ions for every 1 mole of Ba(OH)2.

[OH-]= 0.00104 M

pOH = -log(0.00104 ) = 2.99 = 3 .

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