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if you take a 100 ml portion of a 148 m ammonia solution and dilute it to a total volume of 0250 l what is the
consider a pipe with a length of 435 cm if the temperature of the air is 195 oc and the pipe is closed in one end and
a sealed container holds 100 mole of helium and 200 moles of nitrogen at 300degc when the total pressure of the mixture
a solution containing the complex formed between biiii and thiourea has a molar absorptivity of 932x103 lxcm-1xmol-1 at
consider a string with a length of 545 cm tied at both end like on a stringed instrument if the frequency of the first
one method to produce nitrogen in the lab is to react ammonia with copper ii oxide nh3g cuosnbspnbspcus h2ol n2g
please create 1 synthesis you get to choose any starting material but you should demonstrate all of the following
determine the percent yield of barium sulfate obtained 49852g when 1000 ml of a 02516m aqueous barium chloride is
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