What volume, in milliliters, of 0.160 M0.160 M NaOH NaOH should
be added to a 0.140...
What volume, in milliliters, of 0.160 M0.160 M NaOH NaOH should
be added to a 0.140 L0.140 L solution of 0.021 M0.021 M glycine
hydrochloride (pKa1=2.350,Ka1=2.350, pKa2Ka2 = 9.7789.778) to
adjust the pH to 2.61?
What volume (in milliliters) of 0.120 M NaOH should be added to
a 0.125 L solution of 0.0250 M glycine hydrochloride (pKa1 = 2.350,
pKa2 = 9.778) to adjust the pH to 2.96?
A 65.0 mL solution of 0.161 M potassium alaninate (H2NC2H5CO2K)
is titrated with 0.161 M HCl. The pKa values for the amino acid
alanine are 2.344 (pKa1) and 9.868 (pKa2), which correspond to the
carboxylic acid and amino groups, respectively.a) Calculate the pH
at the first equivalence...
What volume (in milliliters) of 0.200 M NaOH should be added to
a 0.125 L solution of 0.0280 M glycine hydrochloride (pKa1 = 2.350,
pKa2 = 9.778) to adjust the pH to 2.73?
What volume of 0.500 M NaOH should be added to 2.50 g of
oxobutanedioic acid (MW 132.073, pKas 2.56 and 4.37) to give a pH
of 4.37 when diluted to 500 mL?
500.0 mL of 0.140 M NaOH is added to 565 mL of 0.250 M weak acid
(Ka = 8.39 × 10-5). What is the pH of the resulting buffer?
HA(aq)+OH^-(aq)=H2O(l)+ A^-(aq)
pH=?
500.0 mL of 0.140 M NaOH is added to 595 mL of 0.200 M weak acid
(Ka = 2.29 × 10-5). What is the pH of the resulting buffer? HA (aq)
+ OH (aq) ---> H2O (L) + A (aq)
Calculate the volume, in milliliters, of a 0.216 M NaOH solution
that will completely neutralize each of the following: 1.) 3.71 mL
of a 1.32 M HNO3 solution. 2.) 8.10 mL of a 0.800 M H3PO4
solution.
1. Calculate the volume in milliliters (mL) of a 6.00 M
NaOH solution needed to make 5.00 x 102 mL of a 0.100 M NaOH
solution. (Recall that M = molar = mol/L, and show all
your work).
2. An approximately 0.1 M NaOH solution was standardized
with KHP by titration to a phenolphthalein endpoint. From the
following data, calculate the average molarity of the NaOH. The
molar mass of KHP is 204.22 g/mol.
Trial 1 Trial 2 Mass of...
To what volume (in milliliters) should you dilute 100.0 mL of a
4.50 M solution of CaCl2 solution to obtain a 0.900
M solution of CaCl2?
Express the volume to three significant figures and include the
appropriate units.
a.) What volume (to the nearest 0.1 mL) of 4.50-M NaOH must be
added to 0.300 L of 0.150-M HNO2 to prepare a pH = 3.20 buffer?
______ mL
b.) What volume (to the nearest 0.1 mL) of 4.00-M HCl must be
added to 0.700 L of 0.350-M K2HPO4 to prepare
a pH = 7.50 buffer? _______ mL