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an argon laser puts out 50 w of continuous power at a wavelength of 532nm the diameter of the laser beam is 55mm if the
ch3nc isomerizes when heated to give acetonitrile ch3cn the reaction is first order at 230c the rate constant for the
write the isotope notation for the element that has 77 neutrons 54 electrons and has a net charge of
so2cl2 decomposes when heated the initial concentration of so2cl2 was 00248 moll if the rate constant is 22x10-2s what
silica gel is a common chromotography stationary phase what is silica gel why is it a preferred media for the
a 40-year-old manager at a prominent legal firm in la experiences abdominal pain post lunch he goes to the restroom a
a solution is prepared by mixing 3500 ml of 0061 m znno32aq with 2000 ml of kohaq with 2000 ml kohaq with a ph of 900a
2 solution are mixed 100 ml of 00020 m hbraq with 10000 ml of 00015 m caoh2aq what is the ph of the resulting
which if any of the fractions obtained from each of the two distillations conducted in this experiment had boiling
how many grams of each of the following substances will dissolve in 100ml of cold water consult a handbook ceio34 raso4
what is the percent yield of a reaction in which 1455 g phosphorus trichloride reacts with excess water to form 694 g
tooth enamel is mainly hydroxyapatite if 1150g of tooth enamel reacts with hydrochloric acid to give 1231g of calcium
a neon sign is made of glass tubing whose inside diameter is 40 cm and whose length is 53 m if the sign contains neon
what is the organic product expected from the following reaction if k2cr2o7 is present in excess note that k2cr2o7 is
what would be the structure and name of the product after completely oxidizing all double bonds of the following with
the vapor pressure of water at 25 degrees c is 238 torr determine the mass of glucose mw1800 gmol needed to add to 5000
1 how many particles are in 0425 mol of hg2 what is the molar mass of cholesterol if 000105 mol has a mass of 0106
why could the percent composition of a nucleophilic substitution not be determined using a refractometer by measuring
what mass of limestone in kg would be required to completely neutralize a 153 billion-liter lake that is 19times10-5 m
1 a portion of 5000 ml hcl solution requires 2971 ml of 001963 m baoh2 to reach the end point determine the molarity
1 in an ion the sum of the oxidation states is equal to the overall ionic charge note that the sign of the oxidation
the volumetric determination of chloride in biological fluids is carried out with standard hg2 solution in the presence
what volume of a 15 by mass naoh which its density is 1116gml should be used to make 540l of an naoh solution with a ph
1 how many milliliters of water should be added to 200 ml of a 1125 wv solution to make a solution such that 50ml
complete the following reactions drawing structural formulas write the name of the compounds under thema cycloheptene