객관식
In aqueous solution, is sodium bromate, , expected to form an acidic, basic, or neutral solution?
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17. Acid and Base Equilibrium
Ionic Salts
객관식
Determine if each of the following compounds will create an acidic, basic or neutral solution.
a) Co(HSO4)2 b) Sr(HSO3)2
A
a) acidic b) basic
B
a) basic b) basic
C
a) acidic b) acidic
D
a) basic b) acidic
검증된 단계별 안내1
Identify the ions present in each compound. For Co(HSO4)2, the ions are Co^2+ and HSO4^-. For Sr(HSO3)2, the ions are Sr^2+ and HSO3^-.
Determine the nature of each ion. Co^2+ is a metal cation that does not affect pH significantly. HSO4^- is the hydrogen sulfate ion, which can donate a proton (H^+) and is therefore acidic. Sr^2+ is a metal cation that does not affect pH significantly. HSO3^- is the hydrogen sulfite ion, which can accept a proton and is therefore basic.
Analyze the effect of each ion on the solution's pH. In Co(HSO4)2, the presence of HSO4^- suggests the solution will be acidic. In Sr(HSO3)2, the presence of HSO3^- suggests the solution will be basic.
Consider the overall effect of the ions in each compound. Since HSO4^- is acidic, Co(HSO4)2 will create an acidic solution. Since HSO3^- is basic, Sr(HSO3)2 will create a basic solution.
Conclude the nature of the solutions: Co(HSO4)2 will create an acidic solution, and Sr(HSO3)2 will create a basic solution.
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