e A Buffered Solution Con × Coexist-Me arning.com/ibiscms/mod/ibis/view.php?id:4
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e A Buffered Solution Con × Coexist-Me arning.com/ibiscms/mod/ibis/view.php?id:4950109 03/12/2018 06:00 PM3.9/103/11/2018 05:41 PM t, Print Calculator Isl Perodc Table e) Grade Question 6 of 10 Sapling Learning Map Complete this table of values for four aqueous solutions at 25 . [on] pH poH Solution A: 113.8 × 10-12 IMI Number Number Solution B: 0 0.041 Solution C 11.50 Number Solution D: 6.20 OPrevous ®Giveup & View SoltonCheck AnswerNext @Ext Hint about us careers prvacy policy terms of useExplanation / Answer
[H^+] [OH^-] PH POH
solution -A 3.8*10^-12 2.6*10^-3 11.415 2.585
solution -B 2.44*10^-13 0.041 12.6128 1.3872
solution -C 3.16*10^-12 0.00316 11.5 2.5
solution -D 1.58*10^-8 6.3*10^-7 7.8 6.2
solution -A [OH^-] = Kw/[H^+]
= 1*10^-14/3.8*10^-12 = 2.6*10^-3M
POH = -log[OH^-]
= -log0.0026
= 2.585
PH = 14-POH
= 14-2.585 = 11.415
solution-B
[H^+] = Kw/[OH^-]
= 1*10^-14/0.041 = 2.44*10^-13M
POH = -log[OH^-]
= -log0.041
= 1.3872
PH = 14-POH
= 14-1.3872
= 12.6128
solution-C
PH = 11.5
-log[H^+] = 11.5
[H^+] = 10^-11.5 = 3.16*10^-12M
[OH^-] = Kw/[H^+]
= 1*10^-14/3.16*10^-12 =0.00316M
solution -D
POH = 6.2
-log[OH^-] = 6.2
[OH^-] = 10^-6.2 = 6.3*10^-7 M
[H^+] = Kw/{OH^-]
= 1*10^-14/6.3*10^-7 = 1.58*10^-8 M
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