Calculate the pH for 0.15M KCL, 0.15M Na2HPO4, and 0.15M NH4Cl.
I need to use ICE...
Calculate the pH for 0.15M KCL, 0.15M Na2HPO4, and 0.15M NH4Cl.
I need to use ICE tables to find the pH for these, but I am having
trouble making them work.
Calculate the pH of a buffer solution that contains 0.71 M
NaH2PO4 and 0.12M
Na2HPO4.
I got the answer to the first part which is 6.44, I need
help with the second part
Calculate the change in pH if 0.070 g of solid NaOH is added to
250 mL of the solution in the problem above
.
Calculate the pH of a buffer solution that contains 0.44 M
NaH2PO4 and 0.29M Na2HPO4
Calculate the change in pH if 0.100 g of solid NaOH is added to
250 mL of the solution in the problem above.
pH Dependence of Drug Absorption lab
1. Calculate the amount of Na2HPO4 *
7H2O ( in grams) needed to make 50 mL of a 0.40 M
solution.
2. Calculate the amounts of Na2HPO4 and
NaH2PO4 (in grams) needed to prepare 200 mL
of a buffer with pH=8.25 so that the sum of concentrations of
HPO42- and
H2PO4- ions is 0.5 M.
pKa1=2.12, pKa2=7.21, pKa3=
12.38
* on this problem I think you use the Henderson-Hasselbalch
equation, but after that I'm...
Calculate the pH of 100.0 mL of a buffer that is 0.0850 M NH4Cl
and 0.180 M NH3 before and after the addition of 1.00 mL of 5.50 M
HNO3.
Can you please do a step-by-step of how to solve this,
paying special attention to how to get the Ka in the Henderson
Hasselbalch Equation? That's the part I'm not
understanding.
Calculate the pH of 100.0 mL of a buffer that is 0.050 M NH4Cl
and 0.180 M NH3 before and after the addition of 1.00 mL of 5.70 M
HNO3.
Before =
After=
Calculate the pH of the 0.250 M NH3/0.5 M NH4Cl buffer system. What
is the pH after the addition of 2.0 mL of 0.250 M NaOH to 18.0 mL
of the buffer solution? After adding 10 more mL of 0.25 M NaOH what
is the pH?