What combination of substances will give a buffered solution that has a pH of 5.05? (Assume each pair of substances is dussolved in 5.0 L of water.) (K(b) for NH(3) = 1.8 x 10^-5 for C(5)H(5)N = 1.7 x 10^-9)
numbers in ( ) are subscripts.
need help because i have no clue.
shown work is needed please
thanks
2007-04-20 15:07:45 · 2 answers · asked by Zywiec 2 in Science & Mathematics ➔ Chemistry
1.0 mol NH3 and 1.5 mol NH4CL or
1.5 mol NH3 and 1.0 mol NH4CL or
1.0 mol C5H5N and 1.5 mol C5H5NHCl or
1.5 mol C5H5N and 1.0 mol C5H5NHCl or
none of these.
please show how you got it.
2007-04-21 05:38:45 · update #1
I think it would be the C5H5N
That, because there is an equation that says that
pH = -log(Ka) +/- 1
(1.0 x 10^-14)/Kb = Ka
Resolving it for C5H5N: pH = 5.23, within parameters
2007-04-28 12:13:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Which acid is used ?????
2007-04-21 01:36:56 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 1⤋