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Mercury is poured into the opening end of a J-shaped glass tube which is closed at the short end, trapping air in that end. Assume ideal gas behavior. The short arm has a length of 50cm and the long open arm has a length of 10 cm. What is the length of the trapped air column in the short arm when the long arm is filled with mercury. Neglect the curvature of the closed end.
Calculate the electrostatic energy of the system and compare this energy to the Hydrogen atom in its ground state.
When caffeine is treated with HCl what solvent is the resulting compound more soluble in? Methylene chloride, chloroform, or water When carboxylic acid is treated with a base such as NaOH
EDTA is utilized to slow microbial degradation of mayonnaise by preventing bacterial uptake of iron. Assuming that mayonnaise has a pH of 3.9 and a total iron content of 10-6 mole/liter, how much EDTA must be added to complex 99% of the total Fe
or each of the following cases, briefly explain whether the action causes net reaction from left to right, right to left, or no net reaction. Also, state whether the equilibrium partial pressure of NH3 increases, decreases or stays the same. (a) i..
What is the molar mass of an ideal gas if a 0.800 g sample of this gas occupies a volume of 200. mL at 50.0 oC and 720. mm Hg
in the olympics and other major athletic competitions a gc-ms is used to screen athletes for their use of banned
Imagine a silica microsphere half of which is coated with a thin gold coating and having a trimethylammoniumpropanethiol molecule anchored to the gold.
A pure amount of this substance was then heated in a closed containe until the liquid-gas interface disappeared. The pressure and temperature at this point was 15.2 MPa and 315 K. Calculate the Van der Waals coefficients and the Virial coefficient..
A 25.0-mL sample of 0.150 M hydrazoic acid is titrated with a 0.150 M NaOH solution. What is the pH after 13.3 mL of base is added. The Ka of hydrazoic acid is 1.9 x 10^-5.
nbspthe atomic weight of a newly discovered element is 110.352 amu. it has two naturally occuring isotopes. one has a
when a current of 0.156A is passed through a solution of lead(II) nitrate, lead is deposited at the cathode. How long will it take to deposit 0.10g of lead?
In an adiabatic compression if one mole of an ideal gas with a Cv=5R/2, the temperature rises from 293 K to 325 K. Calculate the heat, work, change in enthalpy and change in internal energy
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