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Multiple Choice
Which of the following compounds would decrease the pH of solution? a) SrBr2 b) KSH c) NaN3 d) NiP e) Hg2Cl2
A
SrBr2
B
KSH
C
NaN3
D
NiP
E
Hg2Cl2
Verified step by step guidance
1
Identify the nature of each compound: Determine if the compound is acidic, basic, or neutral. Compounds that release H+ ions in solution are acidic and will decrease the pH.
Analyze SrBr2: SrBr2 is a salt formed from a strong base (Sr(OH)2) and a strong acid (HBr). It is neutral and does not affect the pH significantly.
Analyze KSH: KSH contains the SH- ion, which is a weak base. It can increase the pH by accepting H+ ions, thus it does not decrease the pH.
Analyze NaN3: NaN3 is a salt formed from a strong base (NaOH) and a weak acid (HN3). It tends to be basic in solution, thus it does not decrease the pH.
Analyze NiP: NiP can potentially release H+ ions in solution, making it acidic. This would decrease the pH of the solution.