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if n2 and h2 at preliminary pressures of 15atm and 25 atm respectively were allowed to react at 300k as well as the
at room temperature 20 degrees celsius milk turns sour in about 64 hours in a refrigerator 3 c milk can be stored 3
a 3120g sample of a compound made up of aluminum and chlorine yields 1006g of agcl when mixed with enoughagno3 to react
explain what the percentage of calcium is in an ionic compound of unknown composition if a 2241g sample of the compound
explain which of the compounds have just bonding pairs of electrons as well as around the central atomexplain which
state lewis dot formulas for the following and indicate their shape whether it is linear trigonal pyramidal bent or
a 250 g piece of aluminum is dropped into a beaker of water the temperature of the aluminum drops from 94 degrees c to
beta carotene is the most significant of the a vitamins its molarmass gmol can be determined by measuring the osmotic
a an hbr acid solution has a density of 125 gml the acid solution is 20 explain what is the molarity and what is the
explain what products would you observe if you tried to prepare a grignard reagent from 4-bromo1-butanol they give us a
a sample containing 42 ml of 00625 m nabr was made by adding 378 ml of water to an initial solution of concentrated
given the experimentally determined rate law decide whether the proposed mechanism is possible why or why notrate law
for each of the following mechanisms draw a reaction diagram that is appropriate for the number of steps the relative
250 mol nocl was placed in a 250 l reaction vessel at 400deg c after equilibrium was established it was found that 28
a student titrated a sample containing 105 ml of 028m naoh with 074 m hcl explain what is the ph of the solution after
a polonium parent having 84 protons as well as 130 neutrons undergoes a series of three radioactive decays one beta
define how to calculate the power use of the refrigerator and how to calculate the value of a if the room temperature
nitrogen dioxide decomposes according to the reaction given below where kp 448e-13 at a certain temperature2 no2g
for each of the subsequent ground state atoms predict the type of orbital 1s 2p 3d 4f etc from which an electron will
if pure nocl heated to 240c in 1 liter as well as at equilibrium the total pressure is 1atm and the pressure of nocl is
state lewis dot formulas for each of the following and understand whether they are linear trigonal pyramidal bent or
in internal combustion engine running on octane for which the enthalpy of combustion is -5512 kj mol-1 the mass of one
the electron microscope has been widely utilized to obtain highly magnified images of biological and other types of
one of the two most common ingredients in medication designed for the relief of excess stomach acidity is the
500ml of rhubarb juice are titrated with 01000 m naoh and 348ml of this naoh solution are necessary for neutralization