1. When 4.00 mL of 0.100 M HCl is added to each solution, what is the pH? We have not seen an example of each of these—reason it out. Argue with your study group. Think through the flowchart. Ka of HF is 2.4 x 10-4
a. 250.00 mL that contains both 0.100 M HF and 0.125 M KF
b. 50.00 mL that contains both 0.080 M NH3 and 0.090 M NH4Cl
c. 50.00 mL that contains only 0.100 M NaOH
d. 10.00 mL that contains only 0.300 M NaCl
e. 15.00 mL that contains only 0.200 M NH3
First Acid (HCl) will react with the base present in the solution. This simple concept is utilized in solving all the parts.
(a) HCl react with KF
(b) HCl react with NH3
(c) HCl react with NaOH
(d) There are no base. It is simple dilution
(e) HCl react with NH3
After the acid base reaction we need to check the species present in the solution, Then apply PH formula.
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