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The following data have been obtained for oxygen gas at 273.15K. Calculate the best value of the gas constant R from them and the best value of the molar mass of O2.
p/atm 0.750000 0.500000 0.250000
Vm/dm^3mol^-1 29.8649 44.8090 89.6384
initially a 1.0 l container is filled with 2.0 mol of no2. as the system approaches equilibrium what happens to the
Calculate the magnitude of the current in amperes if the number of moles of hydrogen gas produced is 5.36×10-4
First order decomposition in which the rate constant is 0.00830 sec-1, how long will it take (in minutes) until 0.309 mol/L of the compound is left, if there was 0.517 mol/L at the start
When light of frequency 6.88×1015 s-1 shines on the surface of a metal, electrons are ejected with a maximum kinetic energy of 3.40×10-19 J. Calculate the wavelength of this light.
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a swimming pool 20.0 m ? 12.5 m is filled with water to a depth of 3.71 m. if the initial temperature of the water is
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Solve an equilibrium problem (using an ICE table) to calculate the of each of the following solutions. 1) 0.12 M HF pH = ? 2) a mixture that is 0.12 M in HF and 0.12 M in NaF Explain And show work please
How much heat is required to raise the temperature of a stainless steel pot weighing 450 g and containing 270 g of water from 25 degrees Celsius to boiling if the specific heat capacity of stainless steel is 0.51 J/(g*degrees C)
A concentration cell is built based on the following half reaction by using two pieces of iron as electrodes (each weighing 100.0 g), two Fe3+ solutions, 0.149 M and 0.431 M (both exactly 1.00 L in volume), and all other materials needed for a gal..
A sample of sodium metal having a mass of 5.45 g reacts with excess water, and the water is later evaporated. What is the solid product that remains after evaporation, and how many grams of this product are expected to be formed
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