4. Did increasing the polarity of your eluent increa 5. Given that the solid surface is polar, explain why polar samples have lower Rf values than less polar ones. 6. Explain why increasing eluent polarity increases the Rf value for a given sample? 7. In what order, from top to bottom, would you expect to see the spots for naphthalene (C10H8), butyric acid (CH3CH,CH,CO,H), and phenyl acetate (CH3CO,C,H5)? Top Middle Bottom 8. In what order, from top to bottom, would you expect to see the spots for the following: acetic acid = CH3CO2H butanal = CH3CH2CH2CHO; 2-octanone = CH3COCH2CH2CH2CH2CH2CH3 deeane CroH22; 1-butanol = CH3CH2CH2CH2OH %3D doop %3D Bottom %3D 9. If an eluent of too low polarity is used for the development of a TLC plate, will the sample spots be somewhere in the middle, way at the bottom, or way at the top of the plate? 10. If an eluent of too high polarity is used for the development of a TLC plate, will the sample spots be somewhere in the middle, way at the bottom, or way at the top of the plate?

Name the following compounds CH3 CI H3C. N. (d) H3C, CH. CH. CH3 H2 H2 H2 (e) CH3-CH2-CH2° -NH-CH2-CH3

Calculate the oxidation levels of each of the following compounds (Textbook problem 10-12 and worked example 10-2): CH3CH₂CH=CHCH=CH₂ CH3CH₂CH=CHCH₂CH3 CH3CH₂CH₂CH₂CH₂CH3 A B с CH₂CH₂CH=CHCH₂C-OH D CI CH3CHCHCH₂CH₂CH The oxidation levels of compound A is The oxidation levels of compound B is The oxidation levels of compound C is The oxidation levels of compound D is The oxidation levels of compound E is The oxidation levels of compound F is The compound with lowest oxidation level is E NH₂ CH3CH₂CH=CHCHCH3 F

CH,-CH Br eter

9 3.682 5 somple of K CIO 3 s dissolved ih enoush water to Sive 375omL Of solu tion . what js the chlorate jon conantraton in this solution a) 8.0) R10-2M d.) 4.41 X 10-2M b) 1.65x 10-24M e:) 0:118M C.) 300 X 10-2M

2 Draw in the electron purning arrows for the reactions below.

Please answer

DRAW the mec

(Q12) Hydrazoic acid (HN3) is a weak acid with a Ką of 2.5 x 105. What will be the equilibrium pH of a solution that is initially 0.349 M in hydrazoic acid?

CH3 + t-BuO K