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One balloon is filled with helium, while the other contains argon. They are filled to equal volumes and contain the same number of atoms. Predict the relative masses of the gases in the two balloons.
A certain laser uses a gas mixture made up of 9.00 g HCL, 2.00g H2, and 165.0g Ne. What pressure is exerted by the mixture in a 75.0 L tank at 22 degree C?
Given the following at 25°C and 1.00 atm: 1/2N2(g) + O2(g) ® NO2(g)DH0 = 33.2 kJ N2(g) + 2O2(g) ® N2O4(g)DH0 = 11.1 kJ Calculate the DH0 for the reaction below at 25°C. 2NO2(g) ® N2O4(g)
You are given solutions of HCl and NaOH and must determine their concentrations. You use 27.8 mL of NaOH to titrate 100. mL of HCl and 22.8 mL of NaOH to titrate 50.0 mL of 0.0790 M H2SO4.
a 1.00 l flask was filled with 2.00 mol gaseous sulfur dioxide and 2.00 mol gaseous nitrogen dioxide and heated. after
Calculate the mass (in mg) of KCN needed to make 500. mL of aqueous KCN solution with a pH of 10.00. The Ka of HCN = 5.0 x 10-10.
One way to analyze sulfur is by comustion of the sample, which produces SO2 and SO3 that can be bubbled through H2O2 to produce H2SO4. The H2SO4 is then titrated against NaOH in the reaction H2SO4 + 2NaOH ? Na2SO4 + 2H2O.
When measuring the boiling point of a compound, why is the micro boiling point determined at the point when the last bubble has left the bottom of the bell and the liquid begins to rise in the bell
Question- Suggest a probable cause and potential solution for why the molecular ion peak was not observed for a biological molecule using LC with ESI coupled to a quadrapole MS.
A 20.5 g sample of protein dissolved in water to prepare 500ml solution shows an osmatic pressure of 3.72 torr at 27 degrees C. Estimate the molar mass of the protein
When the oxide of generic metal M is heated at 25.0 degrees Celsius, only a negligible amount of M is produced. MO2(s) -> M(s) + O2(g). Delta G =291 kj/mol
If all the weight from the cylinder was removed infinitely slowly and isothermally (reversible, isothermal expansion) what is the maximum amount of work that the gas could provide? How much heat would be added to the system to achieve this work
Referring to Figure, describe all the phase changes that would occur in each of the following cases: Water vapor originally at 0.005 atm and -0.5 °C is slowly compressed at constant temperature until the final pressure is 20 atm.
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