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1.)What H3O+ concentration corresponds to each pH value: (a) 12.600; (b) 8.300; (c) 4.200? (a)
×10 M (b)
×10 M (c)
×10 M
2.) Convert each H3O+ concentration to a pH value.
b. 8.25 ×10−9 M
3.) Convert each H3O+ concentration to a pH value.
a. 0.053 M
b. 0.0000000159 M
4.) Calculate the H3O+ concentration from each pH: (a) 2.40; (b) 8.70. (c)
×10 M (b)
×10 ----------------------- M
5.)
Calculate the value of [−OH] from the given [H3O+] in each solution and label the solution as acidic or basic:
(a) [H3O+] = 2.2 ×10−11 M;
(b) [H3O+] = 3.8 ×10−2 M.
(a)
http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png×10http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png M, (b) http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png×10http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png M, http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_green.png
6.) Calculate the value of [H3O+]from the given [−OH]in each solution and label the solution as acidic or basic:
(a) [−OH]= 7.1 ×10−9 M;(b) [−OH]= 9.4 ×10−4 M.
(a) http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png×10http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png M, http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_green.png (b) http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png×10http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png M, http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_green.png
7.) Calculate the value of
[
OH−
]
from the given
[
H3O+
]
and label the solution as acidic or basic.
a. 1.9 ×10−5 M
http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png×10
http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png M
http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_green.png
b. 7.8 ×10−10 M
http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png×10
http://ezto.mheducation.com/wwtb/viewer/images/sd_vs17_red.png M
8.) Calculate the pH of each aqueous solution: (a) 0.0066 M HCl; (b) 0.000012 M KOH.
a.)
b.)
(select)
(select)
-
3
basic
acidic
acidic
basic
acidic
basic
(select)
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