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The rock in a particular iron ore deposit contains 78% Fe2O3 by mass. How many kilograms of the rock must a mining company process to obtain 1.0 × 103 kg of iron?
Gibbs free energy differences between axial-substituted and equatorial-substituted chair conformations of cyclohexane were given in table 2.4. Calculate the ratio of equatorial to axial tert-butylcyclohexane at 25 degrees C
the total volume of hydrogen gas needed to fill the hindenburg was 2.0x108 l at 1.0 atm and 25degc. how much heat was
analysis of a compound containing only c and cl revealed that it contains 33.33 c atoms by number and has a molar mass
What mass of precipitate forms when 185.5 mL of 0.533 M NaOH is added to 627 mL of a solution that contains 15.8 g of aluminum sulfate per liter
The aqueous electrolytic solution (d= 1.230 g/cm^3) in a typical automotive battery contains approximately 368 g of hydrogen sulfate (H2SO4, sulfuric acid, MM= 98.07948 g/mol) per liter. Calculate the following concentrations
How many molecules of NH3 will be formed when 20.0L of N2 react at STP?
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
What are the Celsius temperatures of Body temperature, ice freezing, water boiling, room temperature?
A sample of carbon dioxide of mass 2.45 g at 27.0°C is allowed to expand reversibly and adiabatically from 500 dm3to 3.00 dm3. What is the work done by the gas?
Problem- Part A) In your experiment one of the reagents was limiting and the other was in excess. Therefore after the lead(II)iodide precipitated from the solution, there were spectator ions left in the solution and also the unreacted excess reage..
question calculate the density of vanadium which crystallizes in a body centered cubic lattice the length of the edge
Apart from differences in amino acid ligands what is the fundamental difference between the way in which the cytochrome cofactor is bound to cytochromes such as myoglobin and respiratory cytochromes like cytochrome c?
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