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Write one overall equation, using an alkali metal ion and a nitrate ion as spectator ions if needed, for the following net ionic equation:H+(aq) + OH-(aq) ? H2O(l)
calculate w and ?U when 1 mole of xenon gas assumed ideal under goes adiabatic expansion from 27?c to 127? assuming(heat capacity of constant volmue=12.5)
Fortunately, you can narrow the search because the PVC piping comes from unique vendors each with their unique degrees of polymerization. By detailed measurement, you determine that the PVC molecular non-extended (i.e., coiled) length is 7 nm. Wha..
8.0 moles of CO2 and 9.0 moles of H2O are places in a 5.0L vessel. When equilibrium is established, [C2H4]=0.45 M. Calculate Keq
What is the FORMULA for the limiting reagent? What is the maximum amount of potassium carbonate that can be formed in grams?
A solution is prepared by dissolving 0.18 moles of acetic acid and 0.18 moles of ammonium chloride in enough water to make 1.0 L of solution. Find the concentration of ammonia in the solution.
A buffer is prepared by combining 25 mL of .50 M NH3(aq) with 25 mL of .20 M HCl. What is the pH of the buffer? (Ka(NH4^+)=5.6 x 10^-10)
Determine the volume of sulfuric acid solution needed to prepare 37.4 g of aluminum sulfate, Al2(SO4)3, by the following reaction
Treatment of 1.385 g of an unknown metal M with an excess of aqueous HCl evolved a gas that was found to have a volume of 382.6 mL at 20.0 C and 755 mm Hg pressure.
In the titration of a solution of a weak monoprotic acid with a .1325M solution of of NaOH, the pH was halfway to the equivalence point was 4.42.
Determine how much oxygen in grams is formed by the complete reaction of 38.88 of Na2O2.
Don't worry about the concentrations of reagents or the colors resulting precipitates (if any). You don't have to precipitate all ions, just separate them
A mixture is at equilibrium at a temperature of 492 K and contains 0.997 M NH3 and 0.211 M H2. Determine the concentration of N2 at equilibrium if the Kc = 170. N2(g) + 3 H2(g) ? 2 NH3(g).
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