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Some water dissolves in liquid methane at -161 degrees C, the boiling point of liquid methane, to give a solution in which the mole fraction of water is 6*10^-5. Determine the mass of water (in units of grams) dissolved in 115L of this solution if the density of the solution is 0.78g/mL. Explain thoroughly please.
A gas undergoes a process that leads to a change in internal energy of 4.5 J, while simultaneously work in the amount of 17.6 J is performed by the gas at constant pressure. Calculate the change in enthalpy of this process.
What volume of pure O2(g), collected at 27°C and 746 torr, would be generated by decomposition of 114 g of a 50.0% by mass hydrogen peroxide solution? Ignore any water vapor that may be present.
Many household cleaning products contain oxalic acid, H2C2O4, a diprotic acid with the following dissociation constants: ka1= 5.9*10^-2, ka2=6.4*106-5 Calculate the equilibrium concentration of HC2O4^- in a 0.20 M solution of oxalic acid.
Which kind of properties are primarily affected by small amounts of impurities in semiconductor crystals
what is the partial pressure of nitrogen in a container that contains 3.96mol of oxygen
The melting point of a pure compound is 152-153 C. Describe the melting behavior for this compound if it is contaminated with 5% of an impurity.
If during the course of the reaction, the vessel is found to contain 7.00 mol of C, 14.1 mol of H2O, 3.00 mol of CO, and 8.60 mol of H2, what is the reaction quotient Q?
An insulated tank contains half liquid and half vapor by volume in equilibrium. The release of a small quantity of vapor without the addition of heat will cause
Derive the activation energy for the reaction that has a rate constant of 3.5 x 10^-5 s-1 at 25C and the rate constant of 4.8 x 10^-4 s-1 at 45C.
If the excess of Cr3+ is discharged into a waste stream that is saturated with atmospheric oxygen at the pH of 6.0, would there be a significant conversion of Cr3+ to dichromate at equilibrium? Present numerical results to justify your conclusion.
Examine the nuclide neptunium-237. The nuclide has a measured nuclear mass of 237.048166 amu. Determine the binding enery in kj, kj/mole
A student was in a hurry to leave the lab and recorded the melting point of the recrystallized trimyristin right after washing the crystals with cold acetone. The melting point range was 46 -50 degrees C. Is this a good result
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