How many mol of HCl would have to be added to 0.874 L of a 2.485...
How many mol of HCl would have to be added to 0.874 L of a 2.485
M B: in order to obtain a buffer with a pH of 8.90? (The Kb for B:
is 5.82*10^-3 3 ). Assume there is no volume change.
0.2 mol of gaseous HCl is added to 1.0 L of a buffer solution
that contains 3.0 M CH3COOH and 3.0 M
CH3COONa. What is the pH of the solution? Assume that
Ka for CH3COOH is 10-5. Assume
also that the volume of the solution does not change when the HCl
is added.
Type your answer in decimal number carrying only one digit after
decimal. So you must round up or down at the second digit after
decimal.
For example,...
Determine the pH change when
0.093 mol HCl is added to
1.00 L of a buffer solution that is
0.497 M in HNO2 and
0.311 M in
NO2-.
pH after addition − pH before addition = pH change
= ___________________
Determine the pH change when
0.115 mol KOH is added to
1.00 L of a buffer solution that is
0.457 M in HNO2 and
0.256 M in
NO2-.
pH after addition − pH before addition = pH change
=_____________
if 0.050 mol of hcl is added to 1.0 l of buffer solution
containing 0.125 M potassium acetate and 0.10 M acetic acid what is
the change in PH of the solution
How many moles of HCl must be added to 1.0 L of 1.0 M NH3(aq) to
make a buffer with a pH of 9.00? (pKa of NH4+ =9.25)
the answer is 0.64, explain please.
Calculate how many milliliters of 0.100 M HCl should be added to
how many grams of sodium acetate dihydrate (NaOAc 2 H2O,
FM 118.06) to prepare 250.0 mL of 0.100 M buffer, pH 5.00.
Calculate how many mL of 0.100 HCl should be added to how many
grams of sodium acetate dihydrate (NaOAc * 2H2O, FM 118.06) to
prepare 250.0 mL of 0.100 M buffer, pH 5.00.