Question 21 3 pts Which of the following would represent a buffer solution? HF/HCI OHC,H,O,CVNIC,H,O,CI NaOH/NaCl...

Question

Question

Answer 1

Answer #1

Answer -

Correct answer is option - 4 ) HCHO₂/NH₃

Here ammonium formate is ammonium salt of formic acid and can be prepared by using formic (weak) acid and ammonia as base (weak).

The ammonium formate widely used as buffer for high performance liquid chromatography.

Answer 2

Similar Homework Help Questions

Which of the following pairs would make a good buffer solution? O H2O, NaCN O HNO3,...

Which of the following pairs would make a good buffer solution? O H2O, NaCN O HNO3, KNO3 O HCI, NaCl O HF, LIF
which of thefollwing can be used to make a buffer NaOH/NaCl O HCl/NaCl O H2S/(ASe)- O...

which of thefollwing can be used to make a buffer NaOH/NaCl O HCl/NaCl O H2S/(ASe)- O NH3/(NH4)+
Which pair of substances will form a buffer solution? OHBr, NaBr O HNO2, HCI HCI, NaOH...

Which pair of substances will form a buffer solution? OHBr, NaBr O HNO2, HCI HCI, NaOH KF, NaOH HClO2, NaClO2

Which of the following represent a buffer system? Check all that apply. NaOH and NaCl HC2H3O2...

Which of the following represent a buffer system? Check all that apply. NaOH and NaCl HC2H3O2 and NaC2H3O2 H2S and KHS KCl and NaCl
Which of the following aqueous mixtures would be a buffer system? OH2SO4, CH3COOH O HCl, NaCl...

Which of the following aqueous mixtures would be a buffer system? OH2SO4, CH3COOH O HCl, NaCl O NH3, NaOH HNO3, NaNO3 OH3PO4, H2PO4 ave int ass dict y Please click somewhere on the bar below to indicate your level of confidence with Not at all Confident Very Confident redictes Confidence level: N/A
3. A solution containing which one of the following pairs of substances will be a buffer...

3. A solution containing which one of the following pairs of substances will be a buffer solution? A) Nal, HI B) KBr, HB C) NaCl, HCI D) NaF, HF E) NaNO3, HNO3

1. Which of the following cannot be mixed together in water to produce a buffer solution?...

1. Which of the following cannot be mixed together in water to produce a buffer solution? NH3 and HCI d. HCN and NaOH a. b. HF and KF HNO3 and NANO3 e. HCIO3 and NaCIO3 с.
Question 5 1 pts A student mixes HCl and NaCl (source of conjugate) and claims to...

Question 5 1 pts A student mixes HCl and NaCl (source of conjugate) and claims to have made a buffer. Is this claim accurate? Yes- it is a mixture of acid and conjugate base after all Yes- any acid with a conjugate can make a buffer Oo oo C No-the conjugate base is so weak it does not reach equilibrium with water Need more information Question 6 1 pts Which combination of acid and base would create a buffer? Assume...
Select any of the following combinations which would make a good buffer solution? O 0.3 M...

Select any of the following combinations which would make a good buffer solution? O 0.3 M HC2H302 + 0.1 M HCI 0.05 M H2CO3 + 0.05 M KHCO3 0.05 M KC2H302 0 0.1 M HCN + 0.2 M NaCN 0.2 M NaF + 0.2 M NaOH O 0.3 M NH4CI O 0.2 M NH3 + 0.1 M NH4Br O 0.3 M NH4Cl + 0.1 M HCI O 0.3 M NH4Cl + 0.1 M NH3 O 0.5 M HI + 0.5...

Which is a weak base in aqueous solution? O NaOH O HF O NH3 Ca(OH)2

Which is a weak base in aqueous solution? O NaOH O HF O NH3 Ca(OH)2