Multiple ChoiceA 16.4 mL aliquot of 0.182 M H3PO4 is to be titrated with 0.267 M NaOH. What volume (in mL) of the base will it take to reach the equivalence point?255views
Multiple ChoiceA 230.0 mL buffer solution initially contains 3.0×10⁻² M of HCHO₂ and 3.0×10⁻² M of NaCHO₂. In order to adjust the buffer pH to 4.20, what mass of NaOH should you add?331views
Multiple ChoiceA 370.0 mL buffer solution is 0.150 M in HF and 0.150 M in NaF. What mass of NaOH can this buffer neutralize before the pH rises above 4.00? (Ka(HF) = 3.5 × 10⁻⁴.)246views
Multiple ChoiceWhich of the following represents the ionic equation when H+ is added to a solution of acetic acid (CH3COOH) in water?283views
Multiple ChoiceIn a 0.10 M KF solution, what is the concentration of H₃O⁺ given that the Ka for HF is 6.8 × 10⁻⁴?260views
Multiple ChoiceWhich of the following equations correctly shows how the Cr^{3+} cation acts as an acid in water?311views
Multiple ChoiceWhich of the following represents the correct equilibrium expression for the first dissociation of Malonic Acid (H2C3H2O4) in water?299views
Multiple ChoiceIs ZnO + H2O -> Zn(OH)₂ an example of an acidic anhydride or a basic anhydride?280views
Multiple ChoiceThe titration of 80.0 mL of an unknown concentration H3PO4 solution requires 126.0 mL of 0.218 M KOH solution. What is the concentration of the H3PO4 solution (in M)?295views
Multiple ChoiceWhich of the following statements correctly describes strong acids and bases in aqueous solution?332views