For each solution, what are the ions that exist in aqueous solution? Specify the concentration of each.

a) 0.25 M (NH_4)_2SO_4(NH4)2SO4
b) 0.056 M HNO_3HNO3
c) 0.123 K Na_2CO_3Na2CO3
d) 0.00124 M KClO_4KClO4

1 Answer
anor277
Oct 5, 2017

a.a. 2xxNH_4^+2×NH+4, 0.50*mol*L^-10.50⋅mol⋅L−1; SO_4^(2-),SO2−4, 0.25*mol*L^-10.25⋅mol⋅L−1

Explanation:

b.b. H_3O^+H3O+, 0.056*mol*L^-10.056⋅mol⋅L−1; NO_3^(-),NO−3, 0.056*mol*L^-10.056⋅mol⋅L−1

c.c. Na^+Na+, 0.246*mol*L^-10.246⋅mol⋅L−1; CO_3^(2-),CO2−3, 0.123*mol*L^-10.123⋅mol⋅L−1

d.d. K^+K+, 1.24xx10^-3*mol*L^-11.24×10−3⋅mol⋅L−1; ClO_4^(-),ClO−4, 1.24xx10^-3*mol*L^-11.24×10−3⋅mol⋅L−1

While SOME hydrolysis could occur for the carbonate ion,

CO_3^(2-) + H_2O(l) rightleftharpoonsHCO_3^(-) + HO^-CO2−3+H2O(l)⇌HCO−3+HO− we were not given the data to assess the concentration. What data do you need?

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