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Starting with the ideal gas equation, illustrate how the density of a vapor may be determined by the vapor density method?
Large quantities of hydrogen are needed for the synthesis of ammonia. One preparation of hydrogen involves the reaction between carbon monoxide and steam at 300 degrees Celsius in the presence of a copper-zinc catalyst
An electrochemical cell has an Eocell of 1.70 V and transfers 2 moles of electrons. The Faraday constant is 96,485 C/mol e-. What is the value of delta G
sketch and label a graph of the specific volume vs temperature for a pure metal that shrinks as it cools. state all
a particular engine has a power output of 4.00 kw and an efficiency of 28.0. assume the engine expels 6000 j of energy
Explain the fact that KOH is much more soluble in liquid ammonia containing a little water than in pure liquid ammonia.
The pH of a 0.010 mol L-1 solution of a weak monoprotic acid is 2.09 at 25oC. What is the pKa for this acid
How many orbitals would you expect to find in the last subshell of the 5th shell, and how many electrons would you need to fill this subshell
A researcher suspects that the pressure gauge on a 49.9-L gas cylinder containing nitric oxide is broken. An empty gas cylinder weighs 135 lb. The weight of the partially full cylinder is 164.2 lb.
Draw a Lewis structure for each of the following molecules and determine its molecular geometry. What kind of intermolecular forces are present in each substance?
Calculate the percentage of the principal basic component in the sample (That is, the component that is present in the largest percentage. You will need to determine which species are present and calculate the mass percent for each of them in the ..
Calculate the pH of a water at 25oC that contains 3.69 mg/L of carbonic acid. You may assume that the concentrations of carbonate and hydroxide are negligible and that there are no other ions present in solution.
The following pairs of soluble solutions can be mixed. In some cases, this leads to the formation of an insoluble precipitate. Decide, in each case, whether or not an insoluble precipitate is formed.
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