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Working in a tent lab in the Negev desert, you have isolated 12.5 micrograms (12.5e-6 grams) of pure chlorooxin (nonelectrolyte) from a venemous scorpion. You dissolve the sample in .550 mL of water and determine that the osmotic pressure of the resulting solution is .107 torr at 35 deg C (760 torr = 1.00 atm). What is the molar mass of the compound?
Calculate the values of q, w, delta U, and delta H for the reversible adiabatic expansion of 1 mole of a monatomic ideal gas from 5.00 m^3
The freezing point of pure benzene is 5.50 °C and the freezing point depression constant of benzene, Kfp, is -5.12 °C/m.
In combustion studies of H2 as an alternative fuel, you find evidence that the hydroxyl radical (HO) is formed in flames by the following reaction
One way to isolate metals from their ores is to react the metal oxide with carbon as shown in the following reaction: 2MO(s) + C(s) → 2M(s) + CO2(g)
The Reaction 2NOCl(g)---->2NO+CL2(g) has rate-constant values for the reaction of NOCl of 9.3x10^-6/s at 350K and 6.9x10^-4/s at 400K. Calculate activation energy for the reaction. What is the rate constant at 435K?
A 0.5078g sample of impure nitrobenzene was treated with 1.044g of tin. when the reaction was complete, the residual tin was found to weight 0.338g. Calculate the percentage of nitrobenzene in the sample.
What mass of silver chloride can be produced from 1.70 L of a 0.177M solution of silver nitrate.
if your input is a radiative heat source at 150 C, what is the rate at which heat needs to be added to produce the desired work and at what temperature will the engine dump exceess heat?
The solubility of CaSO4 in pure water at 0.0 C is 1.13 gram per liter; what is the value of solubility product
Based on polarity, which compound do you expect to have a larger Rf value in a soluvent of medum polarity
describe the molecular geometry of formic acid in terms of hybrid orbitals,bond angles and sigma and pi bond, and how many lone pairs are in the molecule.
an aqueous CaCl2 solution has a vapor pressure of 81.1 mmHg at 50 C. The vapor pressure of pure water at this temperature is 92.6 mmHg.
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