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a compare the bond enthalpies of the carbon-carbon single double and triple bonds to deduce to an average pi bond
what is the relation between the standard deviation and the precision of a procedure what is the relation between
how much water would be needed to completely dissolve 166 of the gas at a pressure of 700 and a temperature of 10 kh of
1 a sample of hydrogen effuses through a porous container about 9 times faster than that of an unknown gas estimate the
which is the best counter ion of metal ii -bpy complexes on the yields of aldol condensation of benzaldehyde with
silicon has a face centered cubic crystal structure with unit cell edge length of 543 a and four atoms per unit cell a
during an experiment to find molar volume of oxygen assume that you heated your sample too rapidly and some of the
during a molar volume of oxygen experiment indicate how each of the following errors would affect increase decrease or
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mix 1217 ml of a 0226 m naoh solution and 159 ml of a 0226 m hcl solution determine the concentration of h in the final
1the enzyme pyruvate dehydrogenase which converts pyruvate to acetyl coa can be activated by phosphorylation or
who invented the concepts of acidity and alkality what purpose did it serve at the
aluminum foil used for storing food weighs about 03gin2 how many atoms are contained in one square inch of aluminum
an acid ha has ka 228 x 10-4 the ionisation of this acid in a 0170 m solution of the acid in water is closet
any number of green plants can photosynthesize glucose c6h12o6 from carbon dioxide and water producing oxygen as the
aluminum melts at 660 degrees celsius and boils at 2450 degrees celsius its density is 270 gramscc calculate the
one of the treatment for gangrene and the bends is a hyperbaric oxygenation this occurs in a chamber in which oxygen is
draw the major organic product formed when nitrobenzene reacts with cl2 in the presence of
benzene is a organic solvent with the formula c6h6 it boils at 801 degrees celcius and melts at 55 degrees celsius
if the first solvent pair for recrystallization is ethanol-water what would happen if hexane replaced ethanol to make
under which circumstances is it wise to use a mixture of solvents to carry out a
which of the following equations represents the proper net ionic equation for the complete neutralization reaction
which of the following intermediates is present in the acid-catalyzed hydrolysis of t-butyl ethanoate but not in the
in situations where it is not possible to return samples to earth for analysis the presence of extraterrestrial life
explain how spectroscopy could be used by astronomers to assess the habitability of exoplanets and how it might be used