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calculate the molality of a solution prepared by dissolving 475g of c10h8 in 750 ml of c6h6 l of density
consider the following entities sih3cl kr sih3f and nh3a which one will diffuse the fastestb what is the rms speed ms
how many phases does carbon have carbon like many elements or molecules has several solid phases what are
determine the chemical formula of each compound and refer to the formula to calculate the mass percent composition of
150 grams of butane c4h10g deltahfdeg -1256 kjmol is completely combusted in the presence of excess oxygen assume that
1 perchloric acid is either a broslashnsted-lowry acid or a broslashnsted-lowry base if it is an acid what is its
a sample of o2 was collected over water at 25c and 865 atm if the total sample volume was 2538 l how many moles of o2
a rubber is subjected to a shear stress such that larmdaxl larmday1 obtain an expression relating the shear stress s
a 1000l tank at 89degc is filled with 786g of boron trifluoride gas and 709g of dinitrogen difluoride gas you can
ozone o3 in the atmosphere filters ultraviolet light from the sun because light with wavelength less than 300 nm breaks
why is it not possible to convert one geometrical isomer into
a container of volume v contains n moles of gas at high pressure connected to the container is a capillary tube through
the plate height in a particularly packed gas chromatography column is characterized by the van deemter equation with
describe in detail how the addition of plant residues in soil with high cn ratio may lead to n deficiency in
a cylinder with rigid well-insulated walls is divided into two parts by a rigid insulating wall with a small hole in it
assuming that air is 210 percent oxygen by volume what volume of air in liters at 450 degc and 793 mmhg would be
consider a 065 m column with van deemter parameters a022 mm b217 mm mlmin and c0018 mm minml if it takes at least 85
a 187 g sample of mg reacts with 800 ml of a hydrochloric acid solution ph -0544 what is the ph of the solution after
write an essay about molecular modelling its uses and applications and use a freely available modelling software from
a container with rigid well-insulated walls is divided into two parts by a partition one part contains a gas and the
1nbspcalculatenbspthe grams of na2co3nbsprequired to prepare 2500 ml of 0375 m na2co3nbspsolution2nbspthe reaction of
a student decomposes a 9317 g sample of a compound containing only nickel and iodine 1245 g of nickel are precipitated
consider using the apparatus shown in given figure a known as the joule paddle wheel to determine the specific heat at
write the balanced equation for the reaction of calcium metal with iron iii nitrate the coefficients on calcium metal
aluminum displaces cobalt from a 02 m solution of cobaltii perchlorate cobalt does not displace chromium from a