Webif the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is 3.74, which of the following is true? a) [HCHO2]= [NaCHO2] b) it is not possible to make a buffer of this pH from HCHO2 and NaHCO2 c) [HCHO2] [NaHCO2] e) [HCHO2]< Expert Solution Want to see the full answer? Check out a sample Q&A here See Solution star_border WebScience Chemistry if the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is 3.74, which of the following is true? a) [HCHO2]=[NaCHO2] b) it is not possible to …
Answered: If the pKa of HCHO, is 3.74 and the pH… bartleby
Web15 jul. 2024 · Answer: D. [HCHO₂] > [NaCHO₂] Explanation: Formic acid, HCHO₂, is a weak acid that, in presence of its conjugate base, NaCHO₂ (CHO₂⁻), produce a buffer following … WebHCHO2 is a strong acid and therefore cannot have a pKa of 3.74. e. It is not possible to make a solution of this pH from HCHO2 and NaCHO2. Explanation: Expert Answer 95% … seattle artinya
Consider the reactionA(aq) =4 2B(aq)K =8.71 X 10-6 at… - SolvedLib
Web23 nov. 2024 · The information is provided as HCHO2 pKa = 3.74 and pH = 3.89 (HCHO2/NaCHO2). The strength of the acid increases with decreasing pKa value. How does pKa work? The pKa value describes the acidity of a molecule. The strength of an acid is determined by the proton's grip on a Bronsted acid. Web28 apr. 2024 · The complete question should be " If the of is 3.74 and the pH of an solution is 3.89, it means that - (a) (b) (c) Which of the options are true?" Answer: Option (c) is … Web10 dec. 2024 · Explanation: The pKa of HCHO2 is 3.74. Using H-H equation the initial pH of the buffer is: pH = pKa + log [NaHCO2] / [HCHO2] pH = 3.74 + log [0.025mol] / [0.025mol] pH = 3.74 The initial pH is 3.74, as we want a pH of 4.10, we need to add NaOH to increase the pH decreasing the H⁺ concentration. Total moles of HCHO2-NaHCO2 buffer are: puerto rico life expectancy male and female