Calculate the pZn of a solution prepared by mixing 25.0 mL of
0.0100 M EDTA with...
Calculate the pZn of a solution prepared by mixing 25.0 mL of
0.0100 M EDTA with 50.0 mL of 0.00500 M Zn2+. Assume
that both the Zn2+ and EDTA solutions are buffered with
0.100 M NH3 and 0.176 M NH4Cl.
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Calculate the pH of a solution prepared by mixing a) 25.0 mL of
0.512 M NaOH and 34.0 mL of 0.187 M HCl b) 46.0 mL of 0.235 M KOH
and 50.0 mL of 0.420 M HC3H5O2 c) 400 mL of 0.250 M NH3 and 250 mL
of 0.120 M HCl
Calculate the pH of a solution prepared by mixing
a) 25.0 mL of 0.512 M NaOH and 34.0 mL of 0.187 M HCl
b) 46.0 mL of 0.235 M KOH and 50.0 mL of 0.420 M
HC3H5O2
c) 400 mL of 0.250 M NH3 and 250 mL of 0.120 M
HCl
11. Calculate the pH of a solution prepared by mixing
a) 48.0 mL of 0.212 M NaOH and 66.0 mL of 0.187 M HCl
b) 69.0 mL of 0.345 M KOH and 125 mL of 0.400 M HC3H5O2
c) 350 mL of 0.130 M NH3 and 400 mL of 0.100 M HCl
A 50.0-mL solution containing Ni2+ and Zn2+ was
treated with 25.0 mL of 0.0452 M EDTA to bind all the metal. The
excess unreated EDTA required 12.4 mL of 0.0123 M Mg2+ for complete
reaction. An excess of the reagent 2,3-dimercapto-1-propanol was
then added to displace the EDTA from zinc. Another 29.2 mL of Mg2+
was required for reaction with the liberated EDTA. Calculate the
molarity of Ni2+ and Zn2+ in the original solution
Consider the titration of 25.00 mL of 0.0200 M MnSO4
with 0.0100 M EDTA at a pH of 8.00. Calculate the value of
pMn+2 after adding the following EDTA volumes:
a. 0.00 mL
b. 15.00 mL
c. 50.00 mL
d. 55.00 mL
A solution of HCl is prepared by diluting 25.0 mL of a 1.0 M HCl
solution with enough water to make 750 mL of HCl solution. (Show
your work for all calculations!)
a) What is the molarity of the HCl solution?
b) What is the [H3O+] and the pH of the HCl solution?
c) Write the balanced chemical equation for the reaction of HCl
and Ba(OH)2
d) How many milliliters of the diluted HCl solution is required
to completely react...
A 35 mL sample of water is triated with 0.0100 M EDTA. Exactly
9.70 mL of EDTA are required to reach the EBT endpoint. Calculate
the total hardness in ppm CaCO3.
A solution is prepared by mixing 150.0 mL of 0.200 M Mg2+ and
250.0 mL of 0.100 M F-. A precipitate forms. Calculate the
concentrations of Mg2+ and F- at equilibrium. Ksp = 6.4 × 10-9