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reaction a b proceeds with h - 25 kjtimesmol-1 s - 100 jtimesk-1timesmol-1 substance a was taken at the initial
if the density of ethanol at room temperature is 0789gml calculate how many grams of ethanol would be required to fill
naturally occuring iodine has an atomic mass of 1269045 a 123849 gram sample of naturally occurring iodine is
laser atomic fluorescence excitation and emission spectra of na in an air acetylene flame are shown in the excitation
please solve by using dimensional analysis and step by step set it up in brackets and solve it in a straight rowif you
if an inflated balloon is placed in the freezer as the temperature of the gas of the balloon decrease the speed of the
1- would you expect a carbonated beverage to have a ph above below or equal to 70explain why2- when you allow a can of
the ph of a 002m solution of a weak acid was measured to be 46 what is the h in the solution calculate the ka and pka
the ananlysis procedure in this experiment requires that the titration be conducted at a ph 10 how is the solution
1 a 500 ml water sample required 514 ml of 00100 m na2h2y to reach the endpoint for the titration procedure described
draw the lewis structure of ch33o be sure to show all atoms bonds lone pairs and formal
draw lewis structure of ncch2coch2cho be sure to show all atoms bonds lone pairs and formal
to make a particular sweet substance a concentrated sucrose solution is boiled until the temperature reaches 265 ofwhat
drinking water is often cooled by evaporation from the surface of a cloth bag or clay pot the heat cap of water 418 jg
if 1081 ml of water is shaken with a gas at 294 atm it will dissolve 000270 g of the gas estimate the henrys law
give the systematic names for the formulas or the formulas for the names type your answer using the format copperii
benzene has heat of vaporaization 31 kjmol and at 25 c has vapor pressure of 108 mm hg the normal boiling point of
common brass is a copper and zinc alloy containing 370 zinc by mass and having a density of 848 gcm3 a fitting composed
a liquid is in equlibrium with its vapor if a small amount of the vapor escapes what is the largest immediate resulta-
carbon monoxide co detectors sound alarm when peak levels of carbon monoxide reach 100 ppm this level roughly
treating the atom as a cube and assuming no empty space in the solid estimate the length in a of an atom of b in
an empty erlenmeyer flask weighs 2151 grams when filled with water d equals 100 grams over cm cubed the flask and its
the height of a cylindrical container is 2951 cm and the diameter is 2050 cm how many gallons of water can this
find the absolute pressure kpa if the gage pressure is 30 psig when the barometer reads 698 mm
which of the following rate law best illustrates the kinetics of the reaction between hydrochloric acid and sodium