A buffer is prepared by combining 80.0 mL of 0.50M HClO and 40.0 mL of 1.0M NaClO. The Ka of hypochlourous acid is 3.5X10-8.
a.) if one adds 0.080 mol of solid KOH to the solution, what will be the new pH? assume no change in volume.
b.) If instead, one adds 20.0 mL of 1.0 M HCl to the orginal buffer, what will be the new pH?
A buffer is prepared by combining 80.0 mL of 0.50M HClO and 40.0 mL of 1.0M...
You are given a 100.0 mL buffer that is 0.50 M HClO and 0.76 M in NaClO (Ka for HClO= 3.5x10^-8). What would the pH of the buffer solution change to if we added 10.0 mL 1.00 M HCl?
Consider the following two buffers: (i) 10.0 mL of a buffer that contains 0.10 M HClO and 0.10 M NaClO (ii) 10.0mL of a buffer that contains 0.050 M HClO and 0.10 M NaClO b.) 8 drops of 1.0 M NaOH (aq) is added to each of these buffers. 1.)Give the balanced net-ionic equation for the reaction that occurs when the NaOH (aq) is added. 2.)For which buffer (i or ii) does the pH change the greatest amount when the...
17.a) Calculate the pH of a 500 mL solution that is 0.185 M in HClO and 0.200 M in NaClO. (HClO, Ka = 3.8 x 10-8 ) b) Calculate the pH after 0.005 mol of KOH has been added to the solution. c) Calculate the pH after 0.005 mol of HCl has been added to the solution.
A solution is prepared by adding 20.0 mL of 0.15 M HCl to 80.0 mL of 0.20 M NH3. Ka(NH4+)= 5.8 x 10-10 a. Is this solution a buffer? Why or why not? b. What is the pH of the solution?
1000 ml buffer is 0.175 M of HClO and 0.150M in HClO and the pH is 7.47 1. what is the pH when 10.00ml of 2.0M NaOH is added? 2. if you add 150mg of HBr what will be the new pH (assume no volume change). Molar mass of HBr is 80.91g/mol sorry HClO it is 0.175 M and for NaClO it is 0.150
Given 100.0 mL of a buffer that is 0.50 M in HClO (Ka = 3.5 X 10-8) and 0.40 Min NaClO, what is the pH after 10.0 mL of 1.0 M NaOH has been added?
a buffer solution consisting of 30ml of 1.0M HC2H3O2 + 30 ml 1.0M NaC2H3O2. 1. Write the chemical equation for buffer solution 2. Calculate ph of buffer solution and account for dilution 3. Calculate ph for buffer solution with addition of 2mL of 1.0 M HCL and account for dilution. 4. Calculate pH for buffer solution with added 2mL of 1.0 M NaOH And account for dilution. The Ka of HC2H3O2 is 1.8 x 10^-5
A buffer solution is prepared by combining 750.0 ml of 1.00 M of ammonia and 250 ml of 1.00 M ammonium chloride. What is the pH of the buffer? ( Ka of NH4+=5.6*10^-10, Kb of NH3= 1.8*10^-5)
A buffer solution is prepared by combining 750.0 ml of 1.00 M of ammonia and 250 ml of 1.00 M ammonium chloride. What is the pH of the buffer? ( Ka of NH4+=5.6*10^-10, Kb of NH3= 1.8*10^-5)
You prepared a phosphate buffer solution by mixing 40.0 mL of 0.250 M KH_2PO_4 and 60.0 mL ol 0.450 M K_2HPO_4 solution. (a) What are the molar concentrations of H_2PO_4 and HPO_4^2-, respectively, in the final buffer solution? (b) Calculate the pH of the solution. (c) Write a net ionic equation when a strong acid, such as HCl(aq) is added to the phosphate buffer solution. (d) Calculate the final pH when 0.0060 mol of HCl is added to the buffer...