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most cooking spices and flavors are a complex mixture of compounds all working together to make an intricate odor the
how would i draw a structure consisting of sio4 units arranged in a chain with each unit sharing two of its oxygen
the decomposition of ozone in the upper atmosphere is facilitated by no the overall reaction and the rate law are o3 o
the first-order rate constant for the reaction of methyl chloride ch3cl with water to produce methanol ch3oh and
a solution is prepared by adding 0900 g of solid rm nacl to 500 ml of 0100 m rm cacl2 what is the molarity of chloride
given that blood exert the same osmotic pressure as a o15 m nacl solution which of the following could be the contents
if the heat of combustion for a specific compound is -11800 kjmol and its molar mass is 9465 gmol how many grams of
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what is the concentration of a solution made by diluting 15ml of 60 m hci to a final volume of 750
a compund contains carbon hydrogen and chlorine combustion of 15800 grams of this compound produces 30063 grams of co2
a solution contains 390g of solute in 142g of solvent what is the mass percent of the solute in the
what is the specific heat capacity of a liquid if 4500 kj of heat caused 2300 g of the liquid if temperature changed
a solution is prepared by dissolving 280 g urea nh22co in 1565 g water calculate the boiling point of the solution urea
your bedroom is 18ft long and 15 feet wide and the distance from floor to ceiling is 8ft 6 inches a find the rooms
solutions of sulfuric acid and lead ii acetate react to form solid lead ii sulfate and a solution of acetic acid530g of
an atomic emission spectrum of hydrogen shows the following three wavelengths 1215 rm nm 1026 rm nm and 9723 rm nm
the single proton that forms the nucleus of the hydrogen atom has a radius of approximately the hydrogen atom itself
ten moles of ideal gas in the initial state p110atm t1300k are taken round the following cyclea reversible change of
the decomposition of phosphine ph3g to p4 g and h2 is first order with rate constant of 11 min-1a how long will it take
calculate the dipole moment of nacl given a bond length of 0236nm and using the charge of an electron for q a find the
at equilibrium the concentration of an acid in solution is 250mm the ph of that solution is 425 assuming that there are
draw a chair conformation of cyclohexane with one ch3ch2 group and one ch3 group that fits in the description a
the activation barrier for an uncatalyzed reaction is estimated to be 17 kcalmol the activation barrier for the
the active site of an enzyme can perturb the pkas of amino acid side chains such that they are raised or lowered from
the following question is offered in anticipation of our chapters on metabolism assuming that the average weight of an