A sample of water from a stream has [H30*]=3.1 × 10-9 M. Which statement below accurately describes this water sample? A. The water sample is acidic. B. The water sample is a basic solution. C. The pOH of the water sample is 8.50. D. pH of the water sample is much les than 7.0. O E. The pH of the water sample is 7.5.

a. A solution of HNO3 has a pH of 3.69. What is the molarity of the solution? Molarity |M b. A solution of HNO3 has a pH of 4.34. What is the molarity of the solution? Molarity M c. A solution of HNO3 has a pH of 2.22. What is the molarity of the solution? Molarity M

Find the pH and percent ionization of each HF solution. (Ka for HF is 6.8×10−4.) a.  Find the pH of a 0.290 M HF solution. Express your answer to two decimal places. b. Find the percent dissociation of a 0.290 M HF solution. Express your answer using two significant figures.   c. Find the pH of a 0.110 M HF solution. Express your answer to two decimal places. d. Find the percent dissociation of a 0.110 M HF solution. Express your answer using two significant figures.   e. Find the pH of a 5.00×10−2 M HF solution.  Express your answer to two decimal places. f. Find the percent dissociation of a 5.00×10−2 M HF solution.  Express your answer using two significant figures.

2. You are given three solutions: HCI (Solution A); NaOH (Solution B); pH = 8.76 solution (Solution S). You are asked to prepare the following solutions, starting with Solution S, and adding small amounts of Solution A or Solution B %3D to it. a. A solution of pH = 7.00 To Solution S, carefully add small amounts of Solution A/ Solution B (Circle one) till the required pH is reached. b. A solution of pH = 6.54 To Solution S, carefully add small amounts of Solution A / Solution B (Circle one) till the required pH is %3D reached. A solution of pH = 9.87 To Solution S, carefully add small amounts of Solution A / Solution B (Circle one) till the required pH is С. %3D reached.

Q 11 please

Qno4 solve with complete solutions and final answers

Question is attached.

What is the concentration of H+ in a pH 0 solution of acid? A. 0 M B. 1 M C. 1 X 10-7 M D. 1 X 10-14 M

3. The [OH] of a solution is 5x10(-6) M. What is the pH? O 6.7 8.3 8.7 O 6.3 4. If I have a solution that

What volume of 1.00 M NaOH is required to neutralize 35.0 mL of 0.220 M H2SO4?