What will be the pH
change when 20.0 mL of 0.100 M NaOH is added to...
What will be the pH
change when 20.0 mL of 0.100 M NaOH is added to 80.0 mL of a buffer
solution consisting of 0.169 M NH3 and
0.188 M NH4Cl? (Assume that there is no
change in total volume when the two solutions mix.)
What change in pH should be observed if 10.0 mL of 0.100 M NaOH
is added to 100 mL of a buffer that is 0.100 M in
CH3COOH and 0.100 M in NaCH3CO2?
Ka for acetic acid is 1.8 x 10-5.
If you can explain step by step that would be awesome!
What is the pH change when 22.4 mL of .07 M NaOH is added to
63.6 mL of a buffer solution consisting of .124 M NH3 and 0.153 M
NH4Cl? (Ka for ammonium ion is 5.6x10^-10.)
What is the pH change when 22.4 mL of .07 M NaOH is added to
63.6 mL of a buffer solution consisting of .124 M NH3 and 0.153 M
NH4Cl? (Ka for ammonium ion is 5.6x10^-10.)
a) Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is
added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
and 0.100 M in NH4Cl(aq). b) Calculate the change in pH when 5.00
mL of 0.100 M NaOH(aq) is added to the original buffer
solution.
Calculate the pH change when 10. mL of 3.0 M NaOH is added to
500. mL of the following:
(a) pure water
(b) 0.10 M CH3COO-
(c)0.10 M CH3COOH
(d)a solution that is 0.10 M CH3COO- and 0.10 M CH3COOH
Calculate the pH change that results when 11 mL of 5.8
M NaOH is added to 776 mL of each the following solutions.
(See the appendix.)
pKa = 9.25
Ka = 5.6e-10
(c) 0.10 M NH3
When 20.0 mL of 1.0 M H3PO4 is added to
60.0 mL of 1.0 M NaOH at 25.0 degrees celcius in a calorimeter, the
temperature of the aqueous solution increases to 35.0 degrees
celcius.
Assuming that the specific heat of the solution is 4.18
J/(g⋅∘C), that its density is 1.00 g/mL, and that the calorimeter
itself absorbs a negligible amount of heat, calculate ΔH
in kilojoules/mol H3PO4 for the reaction.
H3PO4(aq)+3NaOH(aq)→3H2O(l)+Na3PO4(aq)
Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is
added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
and 0.100 M in NH4Cl(aq). Delta pH= ?
Calculate the change in pH when 4.00 mL of 0.100 M NaOH(aq) is
added to the original buffer solution. Delta pH= ?
Calculate the change in pH when 8.00 mL of 0.100 M HCl(aq) is
added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
and 0.100 M in NH4Cl(aq). A list of ionization constants can be
found here.
Calculate the change in pH when 7.00 mL of 0.100 M HCl(aq) is
added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
and 0.100 M in NH4Cl(aq). A list of ionization constants can be
found here.
pH= ?
Calculate the change in pH when 7.00 mL of 0.100 M NaOH(aq) is
added to the original buffer solution.
pH=?