Problem: Which set of compounds would form a buffer in aqueous solution?Drag each item to the appropriate bin.NaF and KFNaCl and KClHCl and KClHF and NaFHCOOH and HCOONaNaF and NaOHHF and KClBufferNot a buffer
FREE Expert Solution
Recall that a buffer can be composed of the following:
• weak base and its conjugate acid
• weak acid and its conjugate base
• weak acid and a strong base
▪ concentration of weak acid > concentration of strong base
• weak base and a strong acid
▪ concentration of weak base > concentration of strong acid
NaF and KF
• NaF → salt
• KF → salt
• mo weak acid present
Not a buffer
NaCl and KCl
• NaCl → salt
• KCl → salt
• mo weak acid present
Not a buffer
HCl and KCl
• HCl → strong acid
• KCl → salt (KCl → K+ + Cl-)
• strong acid + conjugate base
Not a buffer
HF and NaF
• HF → weak acid
Problem Details
Which set of compounds would form a buffer in aqueous solution?
Drag each item to the appropriate bin.
NaF and KF
NaCl and KCl
HCl and KCl
HF and NaF
HCOOH and HCOONa
NaF and NaOH
HF and KCl
Buffer
Not a buffer
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