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Calculate the mass of iron(III) oxide (Fe2 O3) that contains a billion (1.000 x 10 ^9) oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
Using this information and the Clausius-Clapyron equation (P = const•exp(-?Hvap/RT)), calculate the vapor pressure of 3 nm droplets of mercury.
A compound's 13C NMR spectrum shows a resonance at 176 and 85 ppm. What possible structural subunit does the compound contain
consider 4.90lnbspnbspof a gas at 365nbspmmhgnbspnbspand 20.nbspnbspnbspcnbspnbsp. if the container is compressed to
The pressure of the gas is 365 torr, and the temperature is 45, ^{\circ}C. If the temperature changes to 60\, ^{\circ}C with no change in volume or amount of gas, what is the new pressure, P_2, of the gas inside the container
An element has 3 stable isotopes with natural abundances of 11%, 17%, and 72%. The masses of those isotopes are 19.9, 21.9, and 22.9 amu respectively. What is the average atomic mass of this element?
One mole of a monatomic ideal has at a temp of 500K and 6atm pressure is subjected to the following changes: (all are reversible changes)
Calculate the molar kinetic energy (in joules per mole) of a sample of Ne(g) at (a) 25.00 degree C and (b) 26.00 degree C
Use Huckel molecular orbital theory to answer the following questions. Express energies as functions of the parameters α and β.
Explain how the transition from the enamine intermediate to the imine intermediate in the Fischer indole synthesis of 2-phenylindole
Problem- A liquid mixture of 20 mol% benzen, 50 mol% toluene, and 30%m-xylene is to be partially vaporized at 1 atm pressure. What is the lowest and the highest temperature at which vaporization will occur
When aqueous solutions of silver nitrate and sodium sulfide are mixed, a reaction occurs. What are the spectator ions in the reaction
a 15.5 ml sample of 0.215 m koh soultion required 21.2 ml of aqueous acdic soultion in a titration experiment.
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