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If the absorbance of a solution containing the iron(II) thiocyanate complex is 0.45, Then calculate the mile per liter concentration of the complex
A solution containing Pt4+ is electrolyzed with a current of 5.80 A. How long will it take to plate out 79% of the platinum in 0.50 L of a 0.010 M solution of Pt4+.
You need 70.2 J to raise the temperature of 34.0 g of ammonia from 23°C to 24°C. Calculate the heat capacity of ammonia.
The reaction of 2,2-dimethyl-1-propanol with HBr is very slow and gives 2-bromo-2-methyl-propane as the major product
the tip of a vinegar buret but disappears during the course of the titration, how would this affect your calculation of the concentration of acetic acid
Add the angular wave function for a 2s electron of Carbon to that of a 2py electron of the same carbon atom. Subtract one from the other. In what direction do the functions point? What orbitals are "left" unused on the C atom?
(a) how many protein molecules do you find in the average eukaryotic cell and prokaryotic cell? (b). What is the ratio of protein found within a human heart compared to the prokaryotic cells inhabiting human intestines?
Enough Al2(SO4)3 solid is added to water to prepare 100.0 mL of a 0.150 M solution of aluminum sulfate. What is the concentration of sulfate ion in solution?
how many grams of nickel would be electroplated by passing a constant current of 7.2 A through a solution of NiSO4 for 90 minutes.
The expansion of an IDEAL GAS in a vacuum. Is it an endothermic process
For the reaction 2HCl + Na2CO3 to 2NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP?
The solvent for an organic reaction is prepared by mixing 60.0 mL of acetone with 45.0 mL of ethyl acetate. This mixture is stored at 25.0C. The vapor pressure and the densities for the two pure components at 25.0C. What is the vapor pressure of t..
At 50 degree's Celsius the vapor pressure for methanol and ethanol are 406 and 222 torr, respectively. Given a mixture at 50 degree's Celsius that contains 0.2 mol of methanol and 0.1 mol of ethanol, compute the partial pressures of each liquid an..
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