Question

Calculate the pH of the solution that results from each of the following mixtures.

1) 55.0 mL of 0.15 M HCHO2 with 80.0 mL of 0.13 M. Express your answer using two decimal places.

2) 135.0 mL of 0.13 M NH3 with 260.0 mL of 0.13 M NH4Cl. Express your answer using two decimal places.

Answer #1

Calculate the pH of the solution that results from each of the
following mixtures.
Part A
160.0 mL of 0.23 M HF with 220.0 mL of 0.31 M NaF
Express your answer using two decimal places.
pH =
Part B
185.0 mL of 0.11 M C2H5NH2 with 285.0 mL of 0.22 M C2H5NH3Cl
Express your answer using two decimal places.
pH =

Calculate the pH of the solution that results from each of the
following mixtures.
Part A
160.0 mL of 0.25 M HF with 220.0 mL of 0.30
M NaF
Express your answer using two decimal places.
Part B
170.0 mL of 0.10 M C2H5NH2 with 265.0 mL of 0.20 M C2H5NH3Cl
Express your answer using two decimal places.

Calculate the pH of the solution that results from each of the
following mixtures 150.0 mL of 0.24 M HF with 225.0 mL of 0.31 M
NaF Express your answer using two decimal places.

Calculate the pH of the solution that results from each of the
following mixtures.
Part A
140.0 mL of 0.23 M HF with 230.0 mL of 0.32
M NaF
The Ka of HF is 6.6 x 10−4.
Express your answer using two decimal places.
Part B
185.0 mL of 0.12 M C2H5NH2 with 275.0 mL of 0.20 M C2H5NH3Cl
Express your answer using two decimal places.

Use the Henderson-Hasselbalch equation to calculate the pH of
each solution:
Part A
a solution that is 0.17 M in HCHO2 and 0.15 M
in NaCHO2
Express your answer using two decimal places.
Part B
a solution that is 0.16 M in NH3 and 0.19 M in
NH4Cl
Express your answer using two decimal places.

Calculate the pH of the solution that results from each of the
following mixtures.
A. 160.0 mL of 0.25 M HF with 225.0 mL of 0.32 M NaF
B. 185.0 mL of 0.11 M C2H5NH2 with 280.0 mL of 0.20 M
C2H5NH3Cl

Calculate the pH of the solution that results from each of the
following mixtures.
a) 140.0 mL of 0.23 M HF with 220.0 mL of 0.30 M NaF
b) 165.0 mL of 0.12 M C2H5NH2 with 285.0 mL of 0.20 M
C2H5NH3Cl

Calculate the pH of the solution that results from each of the
following mixtures.
140.0 mL of 0.27 M HF with 220.0 mL of 0.32 M NaF
165.0 mL of 0.11 M C2H5NH2 with 270.0 mL of 0.22 M C2H5NH3Cl

Solve an equilibrium problem (using an ICE table) to calculate
the pH of of each solution:
Part A
a solution that is 0.17 M in HCHO2 and 0.15 M
in NaCHO2
Part B
a solution that is 0.10 M in NH3 and 0.17 M in
NH4Cl

Calculate the pH of the solution that results from the following
mixture.
140.0 mL of 0.24 M HF with 230.0 mL of 0.32 M NaF Express your
answer using two decimal places.

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