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Question- A 2.00 gram sample containing Fe requires 32.0 mL of a 0.1 N Permanganate solution to be used in a red-ox titration, what is the percentage of Fe in the sample?
Please take care to reply the question as mark are evenly granted for each point
Acid-catalyzed dehydration of an alcohol most closely resembles an E1 mechanism when secondary and tertiary alcohols are involved.
After about five minutes of mixing, the final temperature of the solution inside the calorimeter reached 37 C. Calculate the heat capacity of the calorimeter (J/C - joules per degree).
which weighs approximately 8.6 oz. Aluminum has a density of 2.70g/cm^3. What is the approximate thickness of the foil in millimeters?
when water freezes its volume is increased by one-eleventh. in other words the volume of ice equals the sum of the
Equilibrium is established between Br-Br (l) and Br-Br (g) at 25 C. A 250.0mL sample of the vapor weighs 0.486g. Explain what is the vapor pressure of bromine 15 25.0 C, in mmHg.
Derive an expression for the partition function for a molecule with two states separated by energy hν (i.e. ε1 = 0 and ε2 = hν). If we consider a canonical ensemble of N such molecules, derive expressions for the total internal energy and the heat..
If the solid calcium carbonate is in powder form. 2) The temperature of a reaction was increased from 20 to 40deg.C. You were determining the rate of reaction at each of the 2 temperatures. The second reaction should be faster by how much
The following pressure and volume data were obtained for 1.00 gram of unknown gas at 90.0C. Calculate the molar mass of the unknown gas in g/mol.
What mass of solid silver chloride will precipitate from a solution containing 1.5 grams of calcium chloride if an excess amount of silver nitrate is added? CaCl2(aq) + 2AgNO3(aq) = 2AgCl(s) + Ca(NO3)2 (aq)
calculate the mass of nitrogen dissolved at room temperature in an 77.0 home aquarium. assume a total pressure of 1.0
When 2.20 grams of Cr(CO)6 reacts according to the following equation at 400 °K in a closed system the temperature goes down and 5.2 kJ of hear is absorbed
Where we isolated caffeine from tea bags using extraction, drying, evaporation, and sublimation. Wanted to know what would happen to the caffeine if the sublimation step were performed at atmospheric level.
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