Bleomycin (MM 1500) also known as Blenoxane is an anticancer drug used to treat breast cancer and Hodgkinson's disease. Bleomycin forms a complex with ferrous iron that is believed to represent the active form of the compound. The stoichiometry of the ferrous complex was first determined using the mole-ratio method. Using the data in the table below determine the stoichiometry of the ferrous bleomycin complex. Increasing amounts of 1.01 mM ferrous iron (ferrous sulfate was used) were added to 0.2-mL (how many microliters is this?) aliquots of a solution of bleomycin prepared by the dissolution of 4.5 mg bleomycin in 5-mL of degassed water, pH 7.0 (this means oxygen has been removed, why?). A 60-μL aliquot of each resulting solution was analyzed in a 1-cm micro-cuvet. Volume of added iron, μL Absorbance at 500 nm, A.U. 0.00 25.0 50.0. 75.0 100. 125. 150. 0.0001 0.0430 0.0768 0.1046 0.1278 0.1400 0.1300

draw the structure of Cu(NO3)2

3. When the first half of the solution containing NaCI and KCI, obtained from 2 g of a feldspar sample, is precipitated with H,PtCl, in an alcoholic medium, the precipitate of K,PICI, is 486 mg. When the other half of the solution is precipitated with AGNO3, 430.5 mg AgCl is formed. Calculate the percentage of Na,O and K,0 in the sample. (H :1 g/mol; Na : 23 g/mol; Cl : 35.5 g/mol; K: 39 g/mol; Pt : 195 g/mol; Ag : 108 g/mol; N : 14 g/mol; 0: 16 g/mol)

Predict the oxidation state of each atom in the following species: Ni(CO3)2 H3PO4  Na2O2

What are ligands?  Give examples

Chemistry Combinations of cobalt (III), ammonia, nitrite ions, and potassium ions result in the formation of a series of seven coordination compounds with the coordination number of cobalt equal to six and the ligands bonding to the central atom through N. Give the formulas and names of ALL the seven compounds in the series.

What is the chemical name for Mn2(CO3)3?

The pentacarbonyl metal, M(CO)5 complex, has two geometrical structures: trigonal bipyramidal or square pyramidal. Experimentally, it was found that the Ru(CO)5 complex show two stretching CO bands in the IR and three bands in the Raman region. According to these information, what would be the expected structure for Ru(CO)5?

What is the balanced net ionic equation of NH3 reacting with Fe(NO3)3 and reacting with CuSO4?

When solid Cd(OH), is added to a solution of 0.10 M Nal, some of it dissolves. Calculate the pH of the solution at equilibrium.