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calculate the amount of heat lost by the hot water and the heat gained by the cold water the difference representing
from each pair below select the molecule that will display stronger intermolecular dipole-dipole forces in a sample of
find the values of k for the equilibria established when aqueous solutions of the following are mixedhf and nh3h2co3
use the following data to estimate the normal boiling point and the molar enthalpy of vaporization of leadtk
the ksp for silver sulfate ag2so4 is 12 10-5 calculate the solubility of silver sulfate in each of the followinga
a 349-g sample of an unknown metal initially at 2328oc is immersed in a 170-g sample of water specific heat 4184 j g-1
a solution is prepared by mixing 200 ml of 0025 m bacl2 and 200 ml of 0075 m k2so4 what are the concentrations of
using the sandmeyer reaction as one step outline the steps necessary to prepare 4-bromotoluene 4-iodotoluene and
given that aprotic solvents are not practical for unimolecular processes little if any reaction occurs via a
what is the maximum number of water molecules that could form h bonds one h bond per water molecule with 1-propanol to
a beaker with 190times10 2 ml of an acetic acid buffer with a ph of 5000 is sitting on a benchtop the total molarity of
write a full curved arrow mechanism for the formation of a peroxyacid ester intermediate from the
which of the following reactions or statements illustrates in one way or another the acidic character of a carboxylic
thiolates are more nucleophilic than less nucleophilic than about as nucleophilic as alkoxides in h2o because s is
which of the following compounds does not have an alkyll group covalently bonded to the c of the carbonyl groupa
consider the process of combustion of complete oxidation -- that is reaction with oxygen resulting in the conversion of
a buffer solution contained 0135 m hco2h and 0215 m hco2na and had a ph of 395 what is the final ph of the solution if
what is the ph of a solution created by mixing 183 ml of a 094 nahso3 solution with 110 ml of a 112 m na2so3
what is the ph of the solution which results from mixing 50 ml of 050 m nh3 aq and 50 ml of 050 m hcl aq at 25oc kb for
what mass in grams of calcium carbonate is needed to react completely with 69ml of 012 m hcl according to the following
how many milliliters of 00050 n koh are required to neutralize 21ml of 00050 n h2so4 and how many milliliters of 00050
what is the ph of a solution prepared by mixing exactly 649 ml of 0200 m hc2h3o2 with 247 ml of 0400 m koh ka for
a set of 13 particles occupies states with energies of 0 100 and 200 cm-1 calculate the total energy and number of
what is the ph of a solution that contains 033 m hc2h3o2 and 030 m c2h3o2- use kb 56 x 10-10 for
barbituric acid hc4h3n2o3 its pka is 401 what is the h and ph of a 0044 m solution of