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13 Dec 2019

Two 24.0mL samples, one 0.200 MKOH and the other 0.200 M CH3NH2, were titrated with 0.100 MHI. Answer each of the following questions regarding these two titrations.

What is the volume of added acid at the equivalence point for KOH?

What is the volume of added acid at the equivalence point for CH3NH2?

Predict whether the pH at the equivalence point for each titration will be acidic, basic, or neutral.

Predict which titration curve will have the lowest initial pH.

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Related questions

Two 25.0 mL samples, one 0.200 MKOH and the other 0.200 M CH3NH2, were titrated with 0.100 MHI. Answer each of the following questions regarding these two titrations.

A.) What is the volume of added acid at the equivalence point for KOH?

B.) What is the volume of added acid at the equivalence point for CH3NH2?

C.) Predict whether the pH at the equivalence point for each titration will be acidic, basic, or neutral.

neutral for KOH and basic for CH3NH2

neutral for KOH and acidic for CH3NH2

basic for KOH and neutral for CH3NH2

acidic for KOH and neutral for CH3NH2

neutral for both

D.)

Predict which titration curve will have the lowest initial pH.

The initial pH will be lower for KOH.

The initial pH will be lower for CH3NH2.

1) You are asked to prepare 2.8 L of a HCN/NaCNbuffer that has a pH of 9.85 and an osmotic pressure of 1.73 atm at 298 K. What masses of HCN and NaCN should you use to prepare the buffer? (Assume complete dissociation of NaCN.)

2) Find the mass of sodium formate that must be dissolved in 290.0 cm3 of a 0.50 M solution of formic acid to prepare a buffer solution with pH = 3.60.

3) Two 18.0 mL samples, one 0.200 MKOH and the other 0.200 M CH3NH2, were titrated with 0.100 MHI. Answer each of the following questions regarding these two titrations.

3.a) What is the volume of added acid at the equivalence point for KOH?

3.b) What is the volume of added acid at the equivalence point for CH3NH2?

3.c)Predict whether the pH at the equivalence point for each titration will be acidic, basic, or neutral.

Predict whether the at the equivalence point for each titration will be acidic, basic, or neutral.