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the thiocyanate polyatomic ion, SCN- is commonly called a pseudohalogen because it acts very much like halide ions. For example, we know that the pure halogens consist of diatomic molecules, such as CL2. thiocyanate ions form similar molecules in the following reactions 2NaSCN + 2H2SO4 + MnO2 -> (SCN)2 + 2H2o + MnSO4 + Na2SO4 1. write a conversion factor that could be used to convert between moles of NaSCN and moles of (SCN)2 2. how many moles of (SCN)2 form when 0.50 moles of NaSCN react completely 3. what is the maximum number of moles of (SCN)2 that could form in the combination of 4 moles of NaSCN and 3 moles of MnO2 4. Write a conversion factor that could be used convert between moles of sulfuric acid, H2SO4, and moles of manganese (II) sulfate, mnSO4 5. What is the minimum number of moles of H2SO4 that must react to form 1.7752 moles of manganes (II) sulfate?
At what temperature in Celsius gas occupy 350ml if the pressure reaches 450torr. b) Calculate the density in g / L, the following gases at STP: He, Ar, and CO2
Can metal ions be separated by slowly adding Na2CO3. Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begin to precipitate, and assume that no volume change occurs on addition of Na2CO3
One of the major problems in peptide synthesis concerns racemization of the amino acids. If all the stereogenic centers at the a carbons of a polypeptide containing 10 different amino acids
A thyroid condition called Goiter can be treated by increasing Iodine in the diet. Iodized salt contains Calcium Iodate, Ca(IO3)2, which is added to table salt.
The proper concentration for an intravenous NaCl solution is .90g NaCl per 100 mL of water(sometimes referred to as .90% m/v) If the van't Hoff factor of NaCl is i=1.8, what is the osmotic pressure of blood at body temperature, 37 degree C ? =_____at..
Aluminum dissolves in HCL according to the equation written below, whereas copper does not react with HCL: 2Al+6HCL ---> 2AlCl3 + 3H2 a 35 gram sample of copper-aluminum alloy is dropped into .750 L of 3M HCl, and the reaction above proceeds as fa..
The standard enthalpy of formation of NH3 is -46 kj/mol. Use this and values for the N(triple bond)N and H-H bond energies to estimate the N-H bond energy
What is the mole fraction of ethanol, CH3CH2OH, in an aqueous solution that is 20.0% ethanol by mass? 0.150
a 19 ml sample of a solution of li2s was diluted with water to 76 ml. a 25ml sample of the dilute solution was found to
health risk does each of the following classification represent Corrosive Carcinogen Teratogen Mutagen
determine the mass of Carbon Monoxide produced when 0.64g of antimony(III) oxide reacts with carbon according to the following equation: Sb2O3 + 3C yields 2Sb + 3CO
Calculate the normal boiling point of a 1.7m aqueous solution of the molecular compund sucrose.
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