1) An aqueous solution contains 0.280 M NaHS and 0.128 M H2S. The pH of this...
1) An aqueous solution contains 0.280 M
NaHS and 0.128 M
H2S.
The pH of this solution is _____
2) A buffer solution is 0.321 M in H2SO3 and 0.328 M in NaHSO3. If Ka for H2SO3 is 1.7×10-2, what is the pH of this buffer solution?
pH = ________
Homework Answers
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1) An aqueous solution contains 0.280 M
NaHS and 0.128 M
H2S.
The pH of this...
A buffer solution contains 0.68 mol of hydrosulfuric acid (H2S) and 0.63 mol of sodium hydrogen...
A buffer solution contains 0.68 mol of
hydrosulfuric acid (H2S) and 0.63 mol of sodium hydrogen sulfide
(NaHS) in 8.30 L. The Ka of hydrosulfuric acid (H2S) is Ka =
9.5e-08.
A buffer solution contains 0.68 mol of hydrosulfuric acid (H2S) and 0.63 mol of sodium hydrogen sulfide (NaHS) in 8.30 L. The K, of hydrosulfuric acid (H2S) is Ka = 9.5e-08. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer...
a. A buffer solution is 0.480 M in HClO and 0.367 M in NaClO . If...
a. A buffer solution is 0.480 M in HClO and 0.367 M in NaClO . If Ka for HClO is 3.5×10-8 , what is the pH of this buffer solution? b. A buffer solution is 0.481 M in H2S and 0.294 M in NaHS. If Ka1 for H2S is 1.0x10^-7, what is the pH of this buffer solution?
A buffer solution is made that is 0.463 M in H2S and 0.463 M in NaHS....
A buffer solution is made that is 0.463 M in H2S and 0.463 M in NaHS. If Kal for H2S is 1.00 x 10-7, what is the pH of the buffer solution? pH Write the net ionic equation for the reaction that occurs when 0.129 mol HI is added to 1.00 L of the buffer solution instead of H (Use the lowest possible coefficients. Omit states of matter. Use H30 Submit Answer Retry Entire Group 9 more group attempts remaining...
1) When a 18.9 mL sample of a 0.401 M aqueous hypochlorous acid solution is titrated with a 0.426 M aqueous sodium hydro...
1) When a 18.9 mL sample of a 0.401 M aqueous hypochlorous acid solution is titrated with a 0.426 M aqueous sodium hydroxide solution, what is the pH after 26.7 mL of sodium hydroxide have been added? 2) A buffer solution contains 0.381 M NaHSO3 and 0.281 M K2SO3. Determine the pH change when 0.083 mol HCl is added to 1.00 L of the buffer. pH change =
A buffer solution is 0.411 M in H2SO3 and 0.270 M in NaHSO3. If Kal for...
A buffer solution is 0.411 M in H2SO3 and 0.270 M in NaHSO3. If Kal for H2SO3 is 1.7x10^-2, what is the pH of this buffer solution?
4) Calculate the pH of a buffer that is 0.258 M acetic acid and 0.128 M...
4) Calculate the pH of a buffer that is 0.258 M acetic acid and 0.128 M sodium acetate Ka for acetic acid is 1.8 X 10-5
3) (1 points) Below is a log C-pH diagram for 10" M hydrogen sulfide (H2S). (a)...
3) (1 points) Below is a log C-pH diagram for 10" M hydrogen sulfide (H2S). (a) Label the lines with the species they represent and assign correct values to the axes. (b) Draw lines for Ht and OH on the diagram. (c) What is the pH of a solution made by mixing 10-4 M NaHS and 9x10-4 M H2S? (d) Would a solution made by adding 0.5x10-4 M Na2S and 9.5x10-4 M H2S be more acidic, more alkaline, or the...
27. What is the pH of an aqueous solution that contains 0.35 M of lactic acid,...
27. What is the pH of an aqueous solution that contains 0.35 M of lactic acid, HC3H5O2, (Ka = 4.4 X 10 -4 ) and 0.55 M of Nat C3H5O2 - ? a. 2.77 b. 3.55 C. 4.65 d. 7.35 e. 5.89
1. An aqueous solution contains 0.395 M hydrocyanic acid. Calculate the pH of the solution after...
1. An aqueous solution contains 0.395 M hydrocyanic acid. Calculate the pH of the solution after the addition of 5.99×10-2 moles of sodium hydroxide to 255 mL of this solution. (Assume that the volume does not change upon adding sodium hydroxide) pH = 2. An aqueous solution contains 0.302 M acetic acid. Calculate the pH of the solution after the addition of 2.56×10-2 moles of potassium hydroxide to 125 mL of this solution. (Assume that the volume does not change...
1. An aqueous solution contains 0.395 M hydrocyanic acid. Calculate the pH of the solution after...
1. An aqueous solution contains 0.395 M hydrocyanic acid. Calculate the pH of the solution after the addition of 5.99×10-2 moles of sodium hydroxide to 255 mL of this solution. (Assume that the volume does not change upon adding sodium hydroxide) pH = 2. An aqueous solution contains 0.302 M acetic acid. Calculate the pH of the solution after the addition of 2.56×10-2 moles of potassium hydroxide to 125 mL of this solution. (Assume that the volume does not change...
A buffer solution contains 0.68 mol of
hydrosulfuric acid (H2S) and 0.63 mol of sodium hydrogen sulfide
(NaHS) in 8.30 L. The Ka of hydrosulfuric acid (H2S) is Ka =
9.5e-08.
A buffer solution contains 0.68 mol of hydrosulfuric acid (H2S) and 0.63 mol of sodium hydrogen sulfide (NaHS) in 8.30 L. The K, of hydrosulfuric acid (H2S) is Ka = 9.5e-08. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer...
A buffer solution is made that is 0.463 M in H2S and 0.463 M in NaHS. If Kal for H2S is 1.00 x 10-7, what is the pH of the buffer solution? pH Write the net ionic equation for the reaction that occurs when 0.129 mol HI is added to 1.00 L of the buffer solution instead of H (Use the lowest possible coefficients. Omit states of matter. Use H30 Submit Answer Retry Entire Group 9 more group attempts remaining...
3) (1 points) Below is a log C-pH diagram for 10" M hydrogen sulfide (H2S). (a) Label the lines with the species they represent and assign correct values to the axes. (b) Draw lines for Ht and OH on the diagram. (c) What is the pH of a solution made by mixing 10-4 M NaHS and 9x10-4 M H2S? (d) Would a solution made by adding 0.5x10-4 M Na2S and 9.5x10-4 M H2S be more acidic, more alkaline, or the...
27. What is the pH of an aqueous solution that contains 0.35 M of lactic acid, HC3H5O2, (Ka = 4.4 X 10 -4 ) and 0.55 M of Nat C3H5O2 - ? a. 2.77 b. 3.55 C. 4.65 d. 7.35 e. 5.89
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