Be sure to answer all parts. A 0.1276 sample of a monoprotic acid (molar mass =...
Be sure to answer all parts. The pH of a 0.051 M weak monoprotic acid is 3.41. Calculate the K, of the acid. x 10 K = Enter your answer in scientific notation.
A 1.53 gram sample of an unknown monoprotic acid is dissolved in 25.0 mL of water and titrated with a a 0.234 M aqueous barium hydroxide solution. It is observed that after 16.3 milliliters of barium hydroxide have been added, the pH is 4.924 and that an additional 10.0 mL of the barium hydroxide solution is required to reach the equivalence point. (1) What is the molecular weight of the acid? g/mol (2) What is the value of Ka for the...
A sample of 0.2140 g of an unknown monoprotic acid was dissolved in 25.0 mL of water and titrated with 0.0950 M NaOH. The titration required 30.0 mL of base to reach the equivalence point, at which point the pH was 8.68. a) What is the molecular weight of the acid? b) What is the pKa of the acid?
Answer all assigned questions and problems, and show all work. Determine the pH of (a) a 0.40 MCH3CO2H solution, (b) a solution that is 0.40 MCH3CO2H and 0.20 MNaCH3CO2. (8 points) (Reference: Chang 16.5) Which of the following solutions can act as a buffer? (a) KCl/HCl, (b) KHSO4/H2SO4, (c) KNO2/HNO2.(5 points) (Reference: Chang 16.9) Calculate the pH of the buffer system made up of 0.15 MNH3/0.35 MNH4Cl. (5 points) (Reference: Chang 16.11) The pH of a bicarbonate-carbonic acid buffer is...
A sample of 0.2140 g of an unknown monoprotic weak acid was dissolved in 25.0 mL of water and titrated with 0.0950 M NaOH. The acid required 15.50 mL of NaOH to reach the equivalence point. What is the molar mass of the unknown acid?
A 0.173 g sample of a monoprotic acid is dissolved in water and titrated with 0.120 M NaOH. What is the molar mass of the acid if 10.5 mL of the NaOH solution is required to neutralize the sample? molar mass: 274.6 molar mass: 274.6 g/mol g/mol
A 0.699 g sample of a monoprotic acid is dissolved in water and titrated with 0.240 M NaOH. What is the molar mass of the acid if 30.0 mL of the NaOH solution is required to neutralize the sample? molar mass: g/mol
A 1.05 g sample of a monoprotic acid is dissolved in water and titrated with 0.320 M NaOH. What is the molar mass of the acid if 19.0 mL of the NaOH solution is required to neutralize the sample? molar mass: molar mass: 8/mol g/mol about us can
Be sure to answer all parts. The solubility of an ionic compound MX (molar mass = 101 g/mol) is 0.00942 g/L. What is Ks for this compound? I x 10 Enter your answer in scientific notation.
A 0.317 g sample of a monoprotic acid is dissolved in water and titrated with 0.100 M KOH. What is the molar mass of the acid if 16.5 mL of the KOH solution is required to o neutralize the sample? molar mass: g/mol