Determine the pH of an HF solution of each of
the following concentrations.
Part A: .280 M
PartB : 4.5*10^-2 M
Part C: 2*10^-2
Part D
In which cases can you not make the simplifying assumption that
x is small?
In which cases can you not make the simplifying assumption that
x is small?
only in (a)
only in (b)
in (a) and (b)
in (b) and (c)
Determine the pH of an HF solution of each of the following
concentrations. In which cases can you not make the simplifying
assumption that x is small? (Ka for HF is 6.8×10−4.)
a) 0.260 M
b) 4.80×10−2 M
c) 3.00×10−2 M
Determine the pH of each of the following two-component
solutions.
0.270 M NH4NO3 and 0.100 M HCN
8.0×10−2 M RbOH and 0.120 M NaHCO3
8.2×10−2 M HClO4 and 2.2×10−2 M KOH
0.110 M NaClO and 5.50×10−2 M KI
Calculate the pH for 300. mL of a 0.850 M solution of the
benzoic acid, (C6H5COOH), Ka=6.30x10-5 ) being titrated with 0.850
M NaOH at the following positions in the titration.
a) The initial pH (before any NaOH has been added). a. 1.436 b.
12.864 c. 5.435 d. 8.534 e. 2.136
b) The pH of the solution after 125.0 mL of 0.850 M NaOH has
been added. a. 10.034 b. 4.054 c. 3.543 d. 8.534 e. 2.132
c) The pH...
Determine the pH of each of the following solutions., 3.6×10−2 M
HI,9.23×10−2 M HClO4, a solution that is 4.0×10−2 M in HClO4 and
4.8×10−2 M in HCl, a solution that is 1.01% HCl by mass (Assume a
density of 1.01 g/mL for the solution.)
please show work
In the laboratory, a general chemistry student measured the pH
of a 0.550 M aqueous solution of formic
acid, HCOOH to be
1.987.
Use the information she obtained to determine the Ka for
this acid.
Ka(experiment) =
A solution of HF is titrated with 0.150 M NaOH. The pH at the
equivalence point will be
greater than 7.0
less than 7.0
equal to 7.0
cannot be estimated from the information given.