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a) Somebody puts an expandable balloon on the opening of the bottle, without any gas escaping. The outside pressure is 1.10atm and the temperature has decreased to 25.8 degree celsius. Calculate the new volume of the gas.
b) Through a valve, 7.0g of nitrogen gas is added to the bottle with balloon discussed in b). The temperature and external pressure are constant. Calculate the partial pressure of nitrogen.
RbNO3 Express your answers as ions separated by a comma. If the compound is not soluble, enter noreaction
the molar mass of a nonelectrolyte is 58.0 g/mol. Compute the boiling point of a solution containing 31.2g of this compound and 600.0 g of water
How much heat is lost when a 640 g piece of copper cools from 375 oC, to 26 oC? (The specific heat of copper is 0.387 J/g . oC)
Calculate the equilibrium concentration of H3O+ in the solution if the initial concentration of C6H5COOH is 7.0×10?2 .
Correct the second part of each of the following statements. (Type your answer using the format copper(II) chloride for CuCl2, and CO2 for CO2.) (a) SF6 is sulfur heptafluoride. (b) Phosphorous pentachloride is Cl5P. (c) Carbon tetrachloride is CC..
Calculate [H+], pH, [OH-] and pOH in a solution in which lactic acid, HC3H5O3, concentration is 0.250 M and the lactate ion concentration is 0.125 M.
Using the van der Waal constants for methane in table 1.3 (a=2.283, b=0.04278) to calculate the initial slopes of the plots of the compressibility factor
water from 20 degrees Celsius to 100 degrees Celsius. What is the delta H of combustion of the propane. What is the sign (positive or negative) of delta H?
A newly developed substance that emits 315 W of photons with a wavelength of 275 nm is mounted in a small rocket such that all of the radiation is released in the same direction.
The respective standard reduction potential in volts for Ni2+ and Ag+ are -0.28 and +0.80. The oxidizing agent in a cell based on nickel and silver is a) Ni b) Ni2+ c) Ag+ d) Ag e) the salt bridge
Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
If you have 100ml of a .1M tris buffer at PH 8.3 and you add 3.0 ml HCl what will be the new pH? (PKa of Tris = 8.3)
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