Calculate pH when: solution prepared by mixing 112.0mL of 1.3x10^-3 M HCL and 444.0 mL of...

Question

Question

Calculate pH when: solution prepared by mixing 112.0mL of 1.3x10^-3 M HCL and 444.0 mL of M HClO4 (assume that volumes are additive)

Answer 1

Answer #1

112.0 ml of 1.3 * 10^-3 M HCl = 0.112 * 1.3 * 10^-3 = 1.456 * 10^-4 mole.

444 ml of 1.0 * 10^-3 M HClO4 = 0.444 * 1.0 * 10^-3 = 4.44 * 10^-4 mole.

total mole of H3O+ = (1.456 * 10^-4 + 4.44 * 10^-4) = 5.896 * 10^-4 mole.

total volume of the mixture = (444 + 112) = 556 ml.

both HCl and HClO4 are strong acids.

[H3O+] = 5.896 * 10^-4 * 1000 / 556 = 1.06 * 10^-3 M

PH = - log (1.06 * 10^-3) = 2.97

PH = 2.97

Answer 2

Similar Homework Help Questions

What is the pH of the solution obtained by mixing 30.00 mL of 0.250 M...

What is the pH of the solution obtained by mixing 30.00 mL of 0.250 M HCl and 30.00 mL of 0.125 M NaOH? We assume additive volumes. What is the pH of a solution that is 0.75 M in sodium acetate and 0.50 M in acetic acid? (ka for acetic acid is 1.3x10-5.) Calculate the pH of a solution prepared by mixing 15.00 ml of 0.10 M NaOH and 30.00 mL of 0.10 M benzoic acid solution. (Benzoic acid is monoprotic; its...
what is the pH of a solution obtained by mixing 40.00 mL of 0.250 M HCl...

what is the pH of a solution obtained by mixing 40.00 mL of 0.250 M HCl and 40.00 mL of 0.125 M NaOH? Assume additive volumes. Show all work. (6 pts)
What is the pH of a solution made by mixing 40.00 mL of 0.100 M HCl...

What is the pH of a solution made by mixing 40.00 mL of 0.100 M HCl with 35.00 mL of 0.100 M KOH? Assume that the volumes of the solutions are additive. 1.64 10.00 12.36 13.36 2.17

A buffer solution is prepared by mixing 23.6 mL of 0.398 M sodium dihydrogen citrate with...

A buffer solution is prepared by mixing 23.6 mL of 0.398 M sodium dihydrogen citrate with 36.6 mL of 0.881 M sodium hydrogen citrate A table of pKa values can be found here 1. Calculate the pH (to two decimal places) of this solution Assume the 5% approximation is valid and that the volumes are additive. Submit Answer Tries 0/3 2. Calculate the pH (to two decimal places) of the buffer solution after the addition of 24.9 mL of a...
What is the "What is the pH of the solution obtained by mixing 30.00 mL of 0.250 M HCl and 30.00 mL of 0.125 M NaOH?

2. What is the "What is the pH of the solution obtained by mixing 30.00 mL of 0.250 M HCl and 30.00 mL of 0.125 M NaOH? We assume additive volumes. 3. What is the pH of a solution that is 0.75 M in sodium acetate and 0.50 M in acetic acid? (K, for acetic acid is 1.8x10-5.)
A solution is prepared by mixing 47.00 mL of 0.024 M AgNO3 with 11.00 mL of...

A solution is prepared by mixing 47.00 mL of 0.024 M AgNO3 with 11.00 mL of 1.0×10-3M Na2CO3. Assume that volumes are additive. Calculate [Ag+], [CO32–], [Na+], and [NO3–] after equilibrium is established. [Ag+]= [CO32+]= [Na+]= [NO3-]=

What is the pH of a solution prepared by mixing 100.00 mL of 0.020 M COM...

What is the pH of a solution prepared by mixing 100.00 mL of 0.020 M COM with 50.000 are additive. Enter your answer with two decimal places. - 100 x 10-14
What is the pH of a solution prepared by mixing 100. mL of 0.0500 M HCl...

What is the pH of a solution prepared by mixing 100. mL of 0.0500 M HCl with 300. mL of 0.500 M HF? [Ka(HF) = 7.1 10–4] Group of answer choices 1.63 2.82 2.01 0.81
The pH of a solution prepared by mixing 63.7 mL of 0.125 M Mg(OH)2 and 254.1...

The pH of a solution prepared by mixing 63.7 mL of 0.125 M Mg(OH)2 and 254.1 mL of 0.125 M HCl is ________. Submit your answer in the following format: 2 decimal places (Example: 7.13) The pH of a solution prepared by mixing 63.7 mL of 0.125 M Mg(OH)2 and 254.1 mL of 0.125 M HCl is ________. Submit your answer in the following format: 2 decimal places (Example: 7.13)

What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3COOH...

What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3COOH with 25.00 mL of 0.050 M CH3COONa? Assume that the volume of the solutions are additive and that Ka = 1.8 x 10-5 for CH3COOH.