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Oxygen at 150 K and 41.64 atm has a tabulated specific volume of 4.684 cm3/g and a specific internal energy of 1706 J/mol.calculate the specific enthalpy of O2 in this state.
Calculate the final temperature of 34mL of ethanol initially at 20celcuis upon absorption of 739 J of heat. (density of ethanol =0.789g/mL )
Rubidium has two common isotopes, 85Rb and 87Rb. If the abundance of 85Rb is 72.2% and the abundance of 87Rb is 27.8%, what is the average atomic mass of rubidium.
What is the concentration of A^3- ions at equilibrium for a 0.10 M solution of a hypothetical triprotic acid H3A, with Ka1 = 6.0 x 10^-3, Ka2 = 2.0 x 10^-8, Ka3 = 1.0 x 10^-14 ?
10M NaF solution is slowly added with stirring, to a solution that contains 10M Ca(NO3)2 and 10M Cr(NO3)3 .Which salt CaF2 - or - CrF3 precipitates first? The Ksp for CaF2 = 5.3x10^-9 & Ksp for CrF3 = 6.6x10^-11
If the presure of 50.0 mL of oxygen gas at 100oC increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume the temperature remains constant.
Discuss what you would observe after elution and visualization of a TLC plate having made the following mistakes in carrying out the anaylsis.
You are the chief environmental officer of an industrial operation of your choosing. Describe your operation, its different components or stages, the materials used and the type of wastes generated.
A metal bulb is filled with 10.2 g of CHCl3 and 0.322 g of CH4 (two gases). What is the total pressure in the bulb if the temperature is 345 C and the volume is 50.0 mL.
What is the density of lead (in ) if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9 ?
An aqueous solution is 22.0% by mass ethanol, CH3CH2OH, and has a density of 0.966 g/mL. what is molality of ethanol
If the titrant has a molarity of 0.2750 M and there are 40.00 mL of analyte present, what is the molarity of the analyte?
What is the complete wavefunction for n=2, L=0, and m(sub L)= 0? What radius of the orbital specified is required to contain 95% probability of finding an electron?
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