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according to the vsepr theory if there are three electron domains in the valence shell of an atom they will be arranged
does aldehyde react with h2o2 peroxide if am treating an compound to convert the alkene into a diol and the compound is
determine the answer to each of the following a the number of unpaired electrons in the mn2 ion show valence orbital
calculate the standard entropy change for the reaction 2nas cl2 g --gt 2nacl s using the data from the following table
given the following information will caco3 be precipitating when ca2 001 moll co3 2- hco3 - h2co3 01 moll
a solution made by dissolving 28 mg of insulin in 55 ml of water has an osmotic pressure of 155 mmhg at 25c calculate
why does ionic bonding almost always result in a solid rather than ion-pair
tdentity the species with the larger radius in each of the following pairs use the concept of effective nuclear charge
a given the following information for element x identify the element group in the periodic table the electron affinity
a mixture of ammonia and oxygen is prepared by combining 0260 l of nh3 measured at 0700 atm and 21degc with 0170 l of
the ka for hocl is 27 x 10-8 what is the ratio of clo-hocl at ph 7 assume that the ph is determined by other species
seawater contains caco3 012 gl caso4 175 gl nacl 297 gl mgso4 248 gl mgcl2 332 gl nabr 055 gl and kcl 053 gl what is
aldrin an insecticide has a logkow of 58 while atrazine an herbicide has a logkow of 26 kow is the octanol-water
the 235u isotope amu 235 undergo fussion when bombarded with neutrons natural abundance is 072 to seperate it from the
a student has been asked to titrate an hcl solution with a concentration of 035 m against an unknown concentration of
when gasses f2 and solid i2 are heated to high temperature the i2 sublimes and gasses iodine heptofluride forms 32x102
895ml of chlorine trifloride gas at 694 mmhg and 36 degree c what is the mass of the
calculate the standard entropy change for the following reaction at 25 degc mgoh2s 2hclg --gt mgcl2s
calculate the ph of each of the following solutions a 0100 m propanoic acid hc3h5o2 ka 13 x 10-5 b 0100 m sodium
each hemoglobin combine with 4 o2 if 102 g of hemoglobin combine with 16 ml of o2 at 37degree c and 724torr what is the
the acid-dissociation constant for an acid-base indicator hin is 00000438 at 600 nm the molar absorptivities are 2230
the addition of solid naso4 to an aqueous solution in equilibrium with solid baso4 will cause what ksp at 20 degrees c
what is the minimum volume of 45m rm hcl required to completely dissolve 160g of magnesium