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the concentration of commercially available concentrated nitric acid is 700 percent by mass or 159m in 100 grams of
what are the major species present in 0250 m solutions of each of the following acids calculate the ph of each of these
using heisenbergs uncertainty principle calculate the uncertainty in the position of a 160 - mg mosquito moving at a
a reaction has the stoichiometry a b c p the concentration of p one minute after mixing the reactants is measured
the vapor pressure of the liquid c4h10 is 5627mmhg at a temperature of 2646k the enthalpy of vaporization for this
calculate the mass of minerl azurate cu3oh2co32 required to produce 125 g of copper ans 226
suppose a reaction has a standard gibbs-free energy of -0707 kjmol calculate the relative ratio of product to
the following experiment is conducted to measure the henrys law constant of chloroform chcl3 a vessel with a volume of
a solution was made by dissolved 20 g of an unknown non-electrolyte in 25 g of acetic acid the solution boiled at 1196
concentrated hcl molar mass 3646 is sold as a 372 aqueous solution with a density of 115 gml calculate its
a sample of 46434g of benzoic acid c7h6o2 is dissolved in 500033 g of camphor what is the freezing point of the
the amino acid selenocysteine found in the active site of various enzymes is identical to cysteine except the sulfur
why is the difference in names between hcnhydrogen cyanide and khpotassium
a solution is prepared by dissolving 150 g of compound in 250 ml h20 at 25 degrees celsius the boiling point of the
the second-order rate constant for the decomposition of nitrous oxide n2o into a nitrogen molecule and oxygen atom has
water treatment plants commonly use chlorination to destroy bacteria a byproduct is chloroform- chcl3 a suspected
1 how many grams of ethylene glycol c2h4oh2 are needed per kilogram of water to protect radiator fluid against freezing
an electron in the n7 level of hydrogen atom relaxes to a lower energy level emitting light of 397 what is the value of
in an investigation of the reaction between copperii ions cu2 and hydrazine n2h4 in alkaline conditions the following
a student calculated an averagelue of 4289 for a siyles law constant k based on the number ofgnificant figures in the
describe a procedure for making 100 ml of a 010 m solution of barium nitrate bano32 make sure to include all equipment
how many kilocalories of heat are released when 75g of steam at 100 celsius is converted to ice at 0 celsius if you
how do i convert benzene to m-bromoaniline using hno3h2so4 and br2fe2br3 and snhcl what is the correct order of the
what is the ration of the concentrations of h2po4- and hpo42- at a ph 70 b ph 75 c ph 80supposedly the pka is 721 and
why is cycloheptatrienone stable while cyclopentadienone is quite unstable explainthe difference in their