When mixed in equal molar amounts, which of the following pairs of substances would create a buffer? HC 104 and CLO4 HCI and NaCl NaOH and Nat CHCOOH and CHCOONa HNO2 and HNO3

Subject: chemistry

Which one of the following combinations cannot function as a buffer solution?     NaHSO4 and H2SO4     KHCO3 and H2CO3     NaHS and H2S     Na2HPO4 and NaH2PO4     NH3 and NH4I

Which of the following combinations could not be used to make an effective buffer? O HNO2 and NaNO2 O NH,Cl and NH3 O CH,CO,H and NaCH,CO2 O NaHSO3 and NazSO4

Which of the following solutions is a good buffer system? A solution that is 0.10 M HC2H3O2 and 0.10 M LiC2H3O2 A solution that is 0.10 M HF and 0.10 M NaC2H3O2 + A solution that is 0.10 M HCl and 0.10 M NH A solution that is 0.10 M NaOH and 0.10 M KOH None of the above are buffer systems.

Which of the following aqueous solutions are good buffer systems? 0.10 M nitrous acid + 0.13 M sodium nitrite 0.31 M ammonium bromide + 0.31 M ammonia 0.29 M hydroiodic acid + 0.23 M potassium iodide 0.16 M potassium fluoride + 0.21 M hydrofluoric acid O 0.39 M acetic acid + 0.25 M potassium acetate

#4. Which one of the following combinations can function as a buffer solution?     KCl and HCl     NaI and HI     KHSO4 and H2SO4     KOH and H2O     NaIO and HIO

Which of the following combinations of substances, when combined in roughly equal amounts, will create a buffer solution? NaC₂H3O2 and NaCl HF HNO2 HCIO4 and KCIO4 HNO3 and NaNO3 HNO3 H2O LICIO and HCIO

A student is making a titration curve. To do so, they added 25.00 mL of 0.1390 M HCl to a flask. They then added 36.78 mL of 0.1080 M KOH to the flask. What is the pH at this point in the titration curve?

Which of the following aqueous solutions are good buffer systems? O0.13 M hypochlorous acid + 0.12 M sodium hypochlorite O 0.10 M potassium fluoride + 0.30 M hydrofluoric acid 0.27 M hydrobromic acid + 0.23 M potassium bromide 0.39 M acetic acid + 0.28 M potassium acetate O 0.34 M ammonium nitrate + 0.38 M ammonia