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Question: What is the molecular weight of a volatile liquid, if .50 g of the liquid fills a 100 mL flask as a gas at 25 degrees C and 1.0 atm pressure ?
a) 61
b) 122
c) 230
d) 352
e) 760
The first-order rate constant for the decomposition of N2O5, 2N2O5 --> 4NO2 + O2 at 70 degrees C is 6.82 * 10 ^-3 . Suppose we start with 2.90×10?2 of in a volume of 1.7 L. A)
What total volume of ozone measured at a pressure of 24.0 and a temperature of 234 can be destroyed when all of the chlorine from 18.5 of goes through ten cycles of the above reactions
A biochemist wants to utilize the following oligopeptide for biochemical assays. Estimate the number of charges on this peptide at different pH conditions by considering the charge states of amino acid residues at pH 2, pH 7.4 and pH 10.
From data below, calculate the total heat (in J) associated with the conversion of 0.412 mol ethanol gas (C2H6O) at 501°C and 1 atm to liquid ethanol at 25.0°C and 1 atm
neutrons are very important in the fission of uranium the manufacture of the artificial isotope plutonium-239 and in
Why does the water solubility of the acidic compound change when going from the aqueous base to the aqueous acid? pls write the eq'n to illustrate this change.
Calculate the pH at equivalence point when 40.0 ml of 0.50 M aniline is titrated with 30.0 ml of 0.67 M HBr. For aniline Kb=3.8x10exp
If the copper is drawn into wire whose diameter is 8.50 mm , how many feet of copper can be obtained from the ingot? The density of copper is 8.94 g/cm^3 .
camphor is a chiral compound and exists as two enantiomers. we are using a racemic mixture of both enantiomers. however,we draw the structure of only one enantiomer.
Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H20(s) and H20 (l) are 2.03 and 4.18 J/g deg C, and the enthalpy of fusion for ice is 6.02 kJ/m.
Which one of the following aqueous solutions will have the lowest boiling point temperature. (Explain or show work) All numbers are subscripts - I didn't know how to type subscripts on here.
A concentration cell consists of two Sn/Sn2+ electrodes. The electrolyte in compartment A is 0.13 M Sn(NO3)2. The electrolyte in B is 0.82 M Sn(NO3)2.
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