If the final volume is 200 mL and the pH is 8.57 and the Ka is 1.8 x 10^-5, find the initial concentration in molarity of sodium acetate. Also calculate the mass of solid sodium acetate needed for the solution.

You have 1.5 liter of solution that is composed of 8.88 grams of NH3 and 11.33 grams of ammonium chloride mixed well. Kb for ammonia =1.8 x 10^-5 (A) is this a buffer solution? Why or why not? (B)if it is a buffer solution, what is the pH of this buffer solution? (C)how many mL of 1.50 M HCl can be added to this solution before the buffer is exhausted (d) how many mL of 1.5 M NaOH can be added to this solution before the buffer is exhausted?

A 29.6 mL sample of 0.271 M dimethylamine, (CH3)2NH, is titrated with 0.237 M hydrobromic acid. After adding 12.9 mL of hydrobromic acid, the pH is Use the Tables link in the References for any equilibrium constants that are required.

A certain weak base has a Kp of 8.50 x 10-'. What concentration of this base will produce a pH of 10.24? concentration:

Calculate the pH of each of the following buffered solutions. Ka(HC, HgO,)= 1.8 × 10 5 1.0.19 M acetic acid/0.29 M sodium acetate pH = 2. 0.29 M acetic acid/0.19 M sodium acetate pH = 3. 0.060 M acetic acid/0.21 M sodium acetate pH = 4. 0.21 M acetic acid/0.060 M sodium acetate pH = Visited

Buffer capacity is a measure of a buffer solution's resistance to changes in pH as strong acid or base is added. Suppose that you have 145 mL of a buffer that is 0.300 M in both acetic acid (CH₂COOH) and its conjugate base (CH3COO-). Calculate the maximum volume of 0.170M HCl that can be added to the buffer before its buffering capacity is lost. volume: esc ! 1 ← 2 #3 с $ 4 G Search or type URL 27 20 % MacBook Pro 5 ^ 6 & 7 +00 8 ( 9 ) mL 0 1

A solution is prepared that is initially 0.095 M in propanoic acid (HC2H5CO2) and 0.31 M in potassium propanoate (KC2H5CO2). Complete the reaction table below, so that you could use it to calculate the pH of this solution. Use x to stand for the unknown change in [H3O+]. You can ieave out the M/ symbol for molanty.

the solution has to be acidified before testing for Ag+ ions. To make sure that the solution is acidic, what should be done?     Apply a drop of the solution to red litmus paper to see if it turns blue.     Apply a drop of the solution to blue litmus paper to see if it turns red.     Apply a drop of the solution to pH paper to see if the pH is above 7.     Apply a drop of the solution to your tongue to see if it tastes sour.