Question

Consider the titration of 100.0 mL of 0.200 M CH₃NH₂ by 0.100 M HCl.
For each volume of HCl added, decide which of the components is a major species after the HCl has reacted completely.
K_b for CH₃NH₂ = 4.4 x 10^-4.

0.00 mL HCl added	50.00 mL HCl added	200.00 ml HCl added	300.00 mL HCl added
yes no  H+ yes no  H2O yes no  Cl- yes no  CH3NH2 yes no  CH3NH3+ Tries 0/45	yes no  H+ yes no  H2O yes no  Cl- yes no  CH3NH2 yes no  CH3NH3+ Tries 0/45	yes no  H+ yes no  H2O yes no  Cl- yes no  CH3NH2 yes no  CH3NH3+ Tries 0/45	yes no  H+ yes no  H2O yes no  Cl- yes no  CH3NH2 yes no  CH3NH3+ Tries 0/45

Calculate the pH at the equivalence point for this titration.

At what volume of HCl added in this titration does the pH = 10.64? Express your answer in mL and include the units in your answer
.

Answer 1