Copper in salt water near the dischargeof a sewage

Assignment Help Chemistry

Reference no: EM13635859

Copper in salt water near the dischargeof a sewage treatment plant is determined by first seperating andconcentrating it by solvent extraction of its dithizone chelate atpH 3 into a methylene chloride and then evaporating the solvent,ashing the chelate to distroy the organic portion, and titratingthe copper with EDTA. Three 1-L portions of the sample are eachextracted with 25 mL portions of methylene chloride and theextracts are combined in a 100-mL volumetric flask and diluted to volume. A 50-mL aliqout is combined in a 100mL volumetric flask anddiluted to volume. A 50 mL aliqout is evaporated, ashed, andtitrated. If the EDTA solution has a CaCO3 titer 2.69 mg/mL and2.67mL is required for titration of the copper, what is the concentration of the copper in the seawater?

Reference no: EM13635859

Questions Cloud

On being heated in air a mixture of feo andfe2o4 picks up : on being heated in air a mixture of feo andfe2o4 picks up oxygen so as to convert completely to fe2o3. if the

For a rise of 1 inch in 100 degrees of cam rotation use : a cam rotating at a constant speed of 100 rpm drives a roller follower such taht it has a displacement given byy 10

Explosives are used to blow a rock apart the explosion : explosives are used to blow a rock apart. the explosion blows the rock into three fragments. two fragments go off at a

A statistics professor works tirelessly to catch students : a statistics professor works tirelessly to catch students cheating on his exams. he has particular routes for his

Copper in salt water near the dischargeof a sewage : copper in salt water near the dischargeof a sewage treatment plant is determined by first seperating andconcentrating

Derive the one-dimensional flux of the component a relative : consider a three component mixture in which two components a and b are dilute in component c. derive the

If it appears that the standard deviation is greater does : test the given claim. assume that a simple random sample is selected from a normally distributed population. use either

What is the velocity vector of the twisted and mangled : 1 an eighteen-wheeler weighing in at 16800 kg. is lumbering along at a modest 15ms. with a direction of 100 degrees

A stunt driver travels a total distance of 1172 feet moving : a stunt driver travels a total distance of 1172 feet moving at a constant speed of 40 miles per hour while weaving

User Account

All Pages