In a 1.0× 10–2 M solution of CH3NH3Br(aq), identify the relative
molar amounts of these species. List them from Most to Least,
please.
H2O
Br-
CH3NH2
CH3NH3
OH-
H3O+
HBr
The molar solubility of PbCl2 in 0.20 M Pb(NO3)2 solution
is:
(a) 1.7 x 10-4 M
(b) 9.2 x 10-3 M
(c) 1.7 x 10-5 M
(d) 4.6 x 10-3 M
(e) 8.5 x 10-5 M
Please show all work
A 25.0 mL sample of 0.175 M HClO(aq) is titrated with 0.100 M
NaOH(aq). What is the pH of a solution after the addition of 25.0
mL of NaOH? (Kaof HClO = 3.5
Solution A (1.0 M Sucrose) and solution B (1.0 M NaCl) are
separated by a dialysis membrane. If the membrane is spontaneously
permeable to Sucrose, NaCl, and Water, what is the INITIAL reaction
of Sucrose, NaCl, and Water?
A buffer solution is made that is 0.363 M in
HClO and 0.363 M in
NaClO .
(1) If Ka for HClO is
3.50×10-8 , what is the pH of the
buffer solution?
(2) Write the net ionic equation for the reaction
that occurs when 0.082 mol HCl is
added to 1.00 L of the buffer solution.
Use H3O+ instead of
H+ .
A buffer solution is made that is 0.388 M in
HCN and 0.388 M in
NaCN.
(1)...
Just answers.
A. A buffer solution that is 0.431 M in
HClO and 0.431 M in
NaClO has a pH of 7.46.
(1) The addition of 0.01 mol of
H3O+ to 1.0 L of this buffer
would cause the pH to _________(increase slightly, increase by 2
units,decrease slightly,decrease by 2 units,not change.)
(2) The capacity of this buffer for added
OH- could be increased by the addition
of 0.147 mol _________(of the weak
acid,of the salt.)
B. How many grams of...