What ratio of CH₃NH₂ to CH₃NH₃⁺ is needed to prepare a pH 9.90 buffer? (Kb for...

Question

Question

What ratio of CH₃NH₂ to CH₃NH₃⁺ is needed to prepare a pH 9.90 buffer? (Kb for CH₃NH₂ is 4.4 × 10⁻⁴)

science chemistry

Answer 1

Answer #1

Answer 2

Similar Homework Help Questions

What ratio of CH3NH2 to CH3NH3* is needed to prepare a pH 10.00 buffer? (Kb for...

What ratio of CH3NH2 to CH3NH3* is needed to prepare a pH 10.00 buffer? (Kb for CH3NH2 is 4.4 % 10-4)
What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4...

What is the pH of a buffer made from 0.580 mol of CH₃NH₂ (Kb = 4.4 × 10⁻⁴) and 0.220 mol of CH₃NH₃I?
What is the ratio of [NHCl]/[NH] in order to make a NH/NHCl buffer solution with pH=8.81....

What is the ratio of [NHCl]/[NH] in order to make a NH/NHCl buffer solution with pH=8.81. (K for NH is 1.8 x 10)

with pH = 4.00. 18. Calculate the ratio of CH,NHto CH NH,Cl concentration required to create...

with pH = 4.00. 18. Calculate the ratio of CH,NHto CH NH,Cl concentration required to create a buffer with pH = 10.24. 19. What mass of sodium benzoate should be added to 150.0 mL buffer
Calculate the pH and concentrations of CH NH, and CH NH; in a 0.0293 M methylamine...

Calculate the pH and concentrations of CH NH, and CH NH; in a 0.0293 M methylamine (CH, NH,) solution. The Kb of CH3NH, is 4.47 x 10-4. pH = [CH, NH] = [CH, NH}=
is 7.19. What mole ratio of K2 SO3 to KHSO3 is needed to prepare a buffer with a pH of 6.89? The pK value for HSO3 SO32...

is 7.19. What mole ratio of K2 SO3 to KHSO3 is needed to prepare a buffer with a pH of 6.89? The pK value for HSO3 SO32 HSO3] Submit Answer Retry Entire Group 9 more group attempts remaining is 7.19. What mole ratio of K2 SO3 to KHSO3 is needed to prepare a buffer with a pH of 6.89? The pK value for HSO3 SO32 HSO3] Submit Answer Retry Entire Group 9 more group attempts remaining

determine the ratio of substance needed to prepare a carbonate buffer of pH= 10.50 providing the...

determine the ratio of substance needed to prepare a carbonate buffer of pH= 10.50 providing the available substances are H2CO3, NaHCO3, and Na2CO3. given these equilibrium systems: use Henderson-Hasselbach equation for pH. H2CO3 <------> H^+ +HCO^3- Ka1 = 4.2x10^-7 [H^+] =???
determine the ratio of substance needed to prepare a carbonate buffer of pH= 10.50 providing the...

determine the ratio of substance needed to prepare a carbonate buffer of pH= 10.50 providing the available substances are H2CO3, NaHCO3, and Na2CO3. given these equilibrium systems: use Henderson-Hasselbach equation for pH. HCO^3- <-----> H^+ + CO3^2- Ka2 =4.8x10^-11 [H^+]???
Question 64 of 68 What ratio of NaCN to HCN is needed to prepare a pH...

Question 64 of 68 What ratio of NaCN to HCN is needed to prepare a pH 9.80 buffer? (Ka of HCN is 4.9 x 10) 4 5 6 7 8 9 +/- : 0 x 100

CH, NH, is a weak base (Kb = 5.0 x 10), so the salt CH_NH,NO, acts...

CH, NH, is a weak base (Kb = 5.0 x 10), so the salt CH_NH,NO, acts as a weak acid. What is the pH of a solution that is 0.0300 M in CH, NH, NO, at 25°C?