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a sealed container holds 100 mole of helium and 200 moles of nitrogen at 300degc when the total pressure of the mixture
dr pepper has 400g of sugar per 12 oz of liquid calculate the molarity of this solution put that molarity into your
what mass of nah2po4 must be added to 120 l of 020 m na2hpo4to make a buffer solution whose ph690
why does the temperature of a solution increase if the reaction is exothermic for example in the precipitation of
determine the mass of glucose c6h12o6s needed to produce a 0150m glucose solution in 500ml of c2h5ohl density
consider a string with a length of 545 cm tied at both end like on a stringed instrument if the frequency of the first
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
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
one method to produce nitrogen in the lab is to react ammonia with copper ii oxide nh3g cuos cus h2ol n2g after
a solution containing the complex formed between biiii and thiourea has a molar absorptivity of 932x103 lxcm-1xmol-1 at
titanium reacts with hydrogen peroxide in 100 m sulfuric acid to form a colored complex if a 200x10-5 m solution
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
1 when h2 gas was released by the reaction of hcl with zn the volume of h2 collected was 660 ml at 26 c and 750 mmhg a
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 1000l tank at 89degc is filled with 786g of boron trifluoride gas and 709g of dinitrogen difluoride gas you can
how many seconds will be required to produce 10 g of chromium metal by the electrolysis of a crno33 solution using a
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
the plate height in a particularly packed gas chromatography column is characterized by the van deemter equation with
1nbspcalculatenbspthe grams of na2co3nbsprequired to prepare 2500 ml of 0375 m na2co3nbspsolution2nbspthe reaction of
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