CW 26 - CHM 2046 Worksheet 26 1 Review 1131111 mple All you...

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Unformatted text preview: CHM 2046 Worksheet 26 1. Review 1131111 mple - All you might want to know about a voltaic cell (possibly more!) (a) Predict the W and the W for the spontaneous reaction. (b) Determine E42211. _{0l 77 V) Q). 3121/): [19. 55v] (c) Indicate the signs of the electrodes, the W or the tons and e' as the cell discharges. Label the (d) Determine the actual E9211- ” H £179__:_i.lv [0191(2) E‘zp'b'w)’ l_"’52101s)(0.w) \—-—'—r—’—“’—-—“"‘" gill—A :— 19.9?V ~19.“f%’ 2. The Lead Storage Battery (see also text pages 959-960). This is a voltaic cell which, like most commercial batteries, does not require a salt Bridge. The RA and 0A are solids and thus can be kept physically separate. (a) The relevant l/2 reactions, b0th written as reductions, are shown. Add these on your E° chart. Write out the overall equation under the cell figure. $5902 + 804'2 + 4H+ + 2e' <—> PbSO + 2H20, E°= 1.68 V PbSO4+2e <—> Pb+SO,'2, E°= —.036V (b) Determine E25311. EO=(1.~(es1/)(a.3ev) IBM V] (c) Indicate the signs of the electrodes, the W of the 1on3 and e' as the cell discharges. Label the We (11) Discuss how this battery is. PW“; + Fl --r asurl r sat-2 51am, “6' "1) Pb (31' lrc’j A 10"1/ QW'H'jZ/Mag; “if”??? 1"} HID Marvelousl! ngg EL" (.25 (armband 1',, 1.5-1/ 1:,” 1, Arr-a.” by”??? H1511 "em-(”'jZ/V‘fltu‘mé 11117' '19.. ”'1' A C knew/17¢ C 1&0 Owl/J) “)1 M (Jylufif/fW 1114; rpm +117), fim—H B—‘LZL‘LE'. (cm. a:!pw:,$(ia1l.a. {3/‘75-01! 5.4.9511; .5: ‘izemprrnfiwe thirié‘wrl-QS'), M and *“éHSan'té// 5::th ("WI/flared! 11.1 fiffi?!‘fluf#CI/'e§) Ill ' Miraculous 3—, 5.11,, J 9,]; 1.251115% Wk ml 1:” (-1.1%: RY," M Pb + H1" '5 _§P‘M+W"efl’“5/H R1671 a; pipd' 522,3" +H'L 1'6 "va ffbfifl" Fgr'i‘mnafiil/y ikfi, wad-135 (9.; "Mega Nadir”; air-e. V‘aet'f‘y 5in Ridiculous 1 ...
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