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Explain what do you have to do with the tube to assure equal pressure? After you have collected the gas, how do you know the pressure inside equals the pressure outside?
Determine the concentration of Cl-remaining in solution at equilibrium, and the solubility of the AgCl. Ten milliliters of 0.20 M AgNO3 is added to 10 mL of 0.10 M NaCl.
Where a and b are constants not equal to zero. Calculate whether this gas has a critical point; if it does, state the critical constants in terms of a and b.
Determine the amount of strain in each conformation in kJ/mol and write down your answer under the appropriate structure.
Determine the numbers of kclo3 are required to form the 2.8L of O2, calculated at stp, according to the following equation? 2KCLO3(S) --> 2KCl(s) + 3 O2 (g)
Determine the shortest and longest wavelengths of light emitted by the electrons in the hydrogen atom that begin in the n= 5 state and then fall to states with the smaller values of n.
The molar heat capacity of water is 75.3 J /K.mol and the molar heat of vaporization of water at 373 K is 40.79 kJ /mol. Assume the molar heat capacity to be temperature independent and ideal gas be
What does this tell you about the electronic and geometric structures of these complexes? Why is the spin-only formula so precise in these cases?
The density of the aluminum is 2.70g -mL. A perfect cube of aluminum metal was found to weigh 20.00g. Determine the dimensions of the cube?
What is the density of the carbon nucleus when the volume of the nucleus of carbon atom is about 9.9 x10-39 mL. The molar mass of the carbon is 12.00 gmol-1.
The change in entropy for the dimerizaton reaction 2NO2 ->N2O4 is negative. Yet it is observed to occur without any external driving force. How could you test your hypothesis? How could
Explain what mass of Sodium Sulphate (Na2 SO 4) is required to form the 500.00 mL of a solution that is 125 ppm in Na + . Assume density of 1.00 g/mL
A Carnot cycle uses 3.00 mol of a monatomic perfect gas as the working substance from an initial state of 5.00 atm and 500K. ). This expansion is followed by an isothermal compression (3
Laramine company has variable cost ratio of 0.56. Fixed cost is $103,840 and 23,600 units are sold at breakeven. Determine the price? Compute variable cost per unit?
Water is added to 4.267 grams of UF6. The only products are 3.730 grams of solid containing only oxygen, uranium, and the fluorine and 0.970 gram of a gas.
You want to deposit $500 per month into the account for 36 months. Suppose the interest rate is equal to prime interest rate. How much do you have (total) in account after 36 months?
Aluminum does not have magnetic properties and heating up the two will destroy the plastic. So, is it possible to separate the plastic and aluminum without picking the pieces out by hand?
Determine the maximum theoretical percent recovery from the re-crystallization of 1.00g of benzoic acid from the 15 ml of water, assuming the solution is filtered at 25 degrees C.
Determine the minimum volume of the acid solution needed to react with all of the iron? Iron reacts with HCl solution to give Fe2+ ions and H2 gas. Suppose that 7.1 g of iron are to be disso
Briefly explain how you could use thin layer chromatography to decide when the reaction was complete. Suppose you prepared benzhydrol by the reduction of benzophenone with sodium borohydride.
What is the molar mass of the polypeptide when a 0.4 g sample of a polypeptide dissolved in the 1 L of an aqueous solution at 27 degree C has an osmotic pressure of 2.74 Torr.
If the rock contained no carbonate other than CaCO3, what was the percent of CaCO3 by mass in the limestone? When a 1.25-gram sample of limestone was dissolved in acid, 0.44 gram of CO2 was
It is suggested that SO2 (molar mass 64grams), which contributes to acid rain, could be removed from a stream of waste gases by bubbling the gases through the 0.25-molar KOH, there by producing
Explain what would be the atomic mass of Cl? Chlorine has two stable isotopes of mass 34.97 u and 36.97 u. Suppose the percent abundance of the lighter isotope were 62.41%.
When aluminum is added to a strong acid, the metal is oxidized to aluminum (III) ions by hydrogen gas and H+ is formed. If 10.0 g of aluminum is added to the 50.0 mL of 0.450 M HCl, determine t