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define what would happen if the mg ribbon was left out and a layer of magnesium oxide formed on it and was not rubbed
define what is the ph of the solution when 1830 ml of 0137 m trisodium hemimellitalate trisodium benzene 123
state the copper i content of a particular compound in copper i peroxide if its elementary copper i content is
in the new england the horizontal component of the earths magnetic field has a magnitude of 161e-5 t an electron is
a buffer solution of a weak base as well as its salt had a ph of 945 when the base was 0110 m and the cation was 200 m
compute the wavelength of the green line in the noticeable spectrum of excited h atoms using bohr
find out the end final value of n in a hydrogen atom transition suppose the electron starts in n2 and absorbs a photon
benzene a melts at 6 0c and diphenylmethanol b melts at 65 0c the solids are mutually immiscible there is a eutectic at
the hydrogen gas is collected over water at 23 degrees c and on atmospheric pressure of 756 mm hg defines what would be
put 12 ml of feii into flask add 20 ml water to it add 1 ml of 9m h2so4 2drops mnso4 and 1 drop of 3 m h3po4 to the
suppose water boils at 277 c when the pressure is 6128kpa and at 329c when the pressure is 12688kpa contrast the
if the ionization energy for rubidium is 403 kjmol the electron affinity for iodine is -295 kjmol utilize these values
put the following elements in order of declining atomic radius- chlorine cl lead pb aluminum al and fluorine flevel the
beginning with the gibbs-helmholtz equation obtain an equation to calculate the variation in equilibrium constants
part abased on position in the periodic table also electron configuration place these elements in order of decreasing
if high purity benzoic acid c6h5cooh hrxn -3227 kjmol is a combustion standard for calibrating bomb calorimeters if an
rank the subsequent ions in order of decreasing radius li na k rb and cs utilize the periodic table as necessary rank
place the subsequent elements in order of decreasing atomic size largest to smallest lead phosphorus oxygen cesium
a gaseous reaction takes place at a constant pressure of 500 atm and releases 640 kj of heat prior to the reaction the
explain what purpose does the addition of bromine serve in the procedure explained for the isomerization of methyl
a 247 ml 166 m kmno4 solution is combined with 167 ml of 0721 m kmno4 solution compute the concentration of the final
explain what is the quantity of heat is needed to raise the temperature of 651 ml of 248 degrees celsius to 278 degrees
the data from the planet zog for some main-group elements are shown below zoggian units are linearly related to earth
assume that 500 milligrams of a radioisotope were produced define what mass of this material would stay after 45
utilizing the structural formulas of the following substances define which ones can exist as a cis-trans isomers 1-