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- I need help with a practice problem (not graded): calculate the pH of an ammonia solution made by diluting 25.0mL of 0.204 M NH3 to a total volume of 50.0mL.TITRATION PROBLEM-SOLVING: 1. It takes 38 ml of 0.75 M NaOH solution to completely neutralize 155 ml of a sulfuric acid solution (H2S04). What is the concentration of the H2SO4 solution? 2. What volume of the acid is required to reach the endpoint? If a 0.3350 g sample of sodium bicarbonate (94.5% NaHCO3) is titrated with 0.1125 N sulfuric acid. 3. It takes 12.5 ml of a 0.30 M HCI solution to neutralize 285 ml of NaOH solution. What is the concentration of the NaOH solution?Problem 4) Problem 5-16: Determine the concentration, in moles per liter, to which the hydroxide concentration must be raised to produce a of 0.200 mg/L of copper if the starting is 2.00 mg/L. Estimate the resultant concentration concentration pH.
- Problem 3. A solution is prepared by dissolving 12.02 g of LiClO to make one liter of solution (Ka of HClO = 2.57×10-7). (a) Write the equilibrium equation (do not show the spectator ion) (b) Determine the pH of the solution (validate any assumptions you make)Question 4 A buffer solution consists of 0,25 mol·dm3 acetic acid (HC,H,O,; 1,8 x 10) and 0,35 mol·dm3 potassium acetate K. (KC,H;O,). a) Calculate the pH of the buffer solution. a. 33 attempts left Check my work Be sure to answer all parts. (a) Calculate the OH concentration in an aqueous solution at 25°C with an H,O concentration of 7.15 x 10" M. x 10 M (b) The value of K at 50°C is 5.48 X 104. Calculate the OH concentration from the above solution at 50°C. x 10 M Next
- A buffer solution is 0.357 M in H2 C204 and 0.399 M in NaHC204. If Kal for H2C204 is 5.9 x 10, what is the pH of this buffer solution? -2 pH = %3D Rotni Entire Groun 9 more group attempts remaining9-The (Ka) value for the reaction of CH3 COOH with NH3 that the PH of the solution-is (6.46) the (Kb=1.75x105) is : a)( 2.1x10 4 b) 2.1x106 c) 1.2 x 106 d) 1.2x10 4Ihave some acetic acid that dissociates in water. [CH3COOH] = 0.405 M and [CH3COO]=0.505 M. K3=1.8x10-5. Find the pH=? (3 sig fig)
- PROBLEM 1: Determine the concentration in molarity of 100ml acid solution used in titrating a 67.119g of sodium hydroxide until phenolphthalein endpoint. In the standardization of 48.613g of sodium hydroxide solution, 0.942g of potassium hydrogen phthalate is required. If the acid solution used is (a) sulfuric acid : (b) nitric acid and (c) phosphoric acid.10. What is the value of [OH-] in a 0.015 MCHCOOH solution? Ka= 1.8 x 10-5 (a) 1.9 x 10-11 M(b) 2.0 x 10-6 M(c) 1.0 x 10-9 M (d) 5.0 x 10-8 M(e) 5.0 x 10-7 MDETAILS PREVIOUS ANSWERS MY NOTES PRACTICE A How many millters of 29 M HGI must be added to 3.0L of 0.16 MKPO, to prepa p 50 tutfer? Use the Acid a Table Xmt