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what are the typical values of deltah in kjmol for aqueous solutions with respect to redox reactions ais deltah
a solution is prepared from 250g of benzene c6h6 and 250g of an unknown compound the freezing point of this solution
the scale of an image indicates that the length of the x-axis and the y-axis is each 400nm knowing this determine the
a stearic acid molecule consists of 18 carbon atoms linked together assuming that the thickness t of a monolayer is
describe how you would prepare the following solutions from the dry solute and solvent 100102g of 500m
determine the ratio of volumes cm3atom and cm3mol to determine avogadros number
determine the molar volume in cm3mol of carbon diamond by using the density of diamond 351 gcm3 and the mass of a mile
borax is used to standardize a solution of hcl if 02334 g of borax requires 2431 ml of hcl titrant what is the hcl
a gas mixture composed of helium and argon has density of 0670 gl at 755 mmhg and 298k what is the composition of the
determine the volume in ml of 200 m hc2h3o2 required to prepare each of the following solutions 020 m acetic acid and
the ka for acetic acid is 18x10-5 if 340 ml of 345 m acetic acid is added to 823 ml of water what will the ph of the
describe the preparation of 12 ml of a 0050 m solution of the following halogen using the reaction below available to
a gas mixture composed of helium and argon has a density of 0670 gl at 755 mm hg and 298k what is the composition of
calculate the molality of commercial hcl solution which is 121molarity and has a density of 119gml and is
an initial mixture of nitrogen gas and hydrogen gas is reacted in a rigid container at a certain temperature by the
the normal boiling point of benzene is 801 c and the heart of vaporization is h 308kjmol what is the boling point of
when extracting caffeine from coffee is it better to do two extractions with 10 ml of methylene chloride or one
a biochemist studying the break down of insecticide ddt finds that it decomposes by a first-order reaction w a
the ph of a 00100 m hypothetical acid ha is 400 calculate the ka for this hypothetical
the constant of a reaction is 35 x 10-3 s-1 at 25 degrees celsius and the activation energy is 336 kjmol what is k at
the delta h degrees f of tii3 s is -328 kjmol and the delta h degrees for the reaction 2 tis 3 i2g -----gt 2tii3 s is
kc for the reaction co2 h2--------h2o co is 16 at about 990 c calculate the number of moles of carbon dioxide in the
you are in a labratory and need to make 90 ml of a solution that is 2 micrograms eb per 01 ml safflower oil outline the
a 202 ml benzene solution containing 227g of an organic polymer has an osmotic pressure of 863 mmhg at 21 degrees
acetylsalicylic acid aspirin hc9h7o4 is the most widely used pain reliever and fever reducer determine the ph of a 0018