{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

CH10_Page_10

# CH10_Page_10 - ltl.52 The higher the pKa of an acid the...

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ltl.52 The higher the pKa of an acid, the stronger the corresponding conjugate base; therefore, the order is 3-hydroxyaniline s: aniline s: 2—hydroxyaniline st 4-hydroxyaniline No simple pattern exists, but the position of the —OH group does aﬂ‘ect the hasieity. gin-hu— {ensemomcoom Dell-x o.12 1o.s4 (a) a; =3.“ 1o“ Here we have assumed that x is small enough to neglect it relative to {1‘12 mo] - L'] . This is a borderline case We will also solve this exercise Without making this approximation and compare the results below. x = {H301 = o.o1o mol - L" pH = —log{tl.t)10)= zoo pOH = 14.09 - 2.00 = 12-00 Without the approximation, the quadratic equation that must he solved is X: ELIE—x orxz + 8.4xlﬂ'4x—lﬂlx Ill"4 =0 _ —st4x1o** : tie-3.4): 1-D"); — 4{—1.o1x1o“) 2 saicto‘1 = x x = noose, — oois. x = [H301 = noose pH = —1eg{o.oose) = 2.02 x2 h K =E.4><l()"=—--—-— U “ 1.2x1o-t-x or x2 +s,4x lﬂ"x—1.ﬂxlﬂ"5 =o x=—l.5 xiii—3, litre-(113“1 The negative root can be eliminated: x = [1130*] = on x m“ on = —log (6.6 x m") = 3.18 pen =14.oo — 3.13 = 10.82 304 ...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern