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Calculate the vapor pressure of Hg at 86 oC (in atm). Hg(l) ? Hg(g) ?Ho = 61.32 kJ and ?So = 98.83 J/K
Technetium-99 is a long-live radioactive isotope of technetium. Each nucleus decays by emitting one beta particle. What is the product nucleus?
An unidentified metal crystallizes in a body-centred cubic lattice with an edge length of 429 pm. The density of the metal is found to be 0.967 g/cm 3 . What is the identity of the metal
If 85.0 of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m. ?
From your current perspective, what do you think the greatest threat is to human health resulting from pollution? Why do you think so?
Calculate the work (in kJ) when 3.00 moles of methane react with excess oxygen at 332 K: CH4(g) + 2O2(g) ? CO2(g) + 2H2O(l)
A 0.13 M solution of a weak monoprotic acid has a pH of 4.11. what is the Ka of this weak monoprotic acid
Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of toluene in the solution that contains 138 g toluene and 106 g benzene.
Draw the enantiomer of cis-1-chloro-3-methylcyclopentane which is R at C-1. 1) What is the configuration of this molecule at C-3 (R and S)?
10mL of 0.1M HNO2 (nitrous acid, ka=4.0x10^-4)is titrated with a .01M KOH solution. After 10mL of the KOH solution is added, what will be the pH in the titration flask?
Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated from the thyroid gland. If 0.455 g of thyroxine is dissolved in 10.0g of benzene, the freezing point of the solution is 5.144 degrees celcius.
the product for the following reaction between THF and excess HI, and provided a detailed step-bystep mechanism for its formation, using the curved arrow formalism
nonvolatitle organi polymer dissolved in 250mL of benzene has an osmotic pressure of 12.3 mmHg at 25 degree celcius. What is the molar mass of the polymer in units of g/mole?
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