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Two solutions primarily at 24.69 degrees Celsius are mixed in a coffee cup calorimeter (Ccal=105.5 J/ degrees Celsius). While a 200mL volume of .100 M AgNO3 solution is mixed with 100mL sample of .100 M NaCl solution the temperature in the calorimeter increases from 25.16 degrees Celsius. Determine Delta H in units of kj/mol AgCl. Presume that the density as well as heat capacity of the solutions is the same as that of water. State a balanced reaction for the process.
Write the chemical equation describing solubility equilibrium and the solubility product constant expression for Cu(IO3)2(s) and Ba3(PO4)2(s)
What would be the pH of a buffer system containing 1.0 M NH3 and 0.10 M NH4Cl. (Kb(NH3) = 1.8 x 10-5)
The "colbalt treatments" used in medicine for arresting certain types of cancer rely upon the ability of gamma rays to destroy canercous tissues. Cobalt-60 decays with the emission of Beta particles and gamma rays, with a half life of 5.27 years. ..
Explain the Delta H for this reaction is 54.8 kJ. Explain how much energy would be absorbed if 27.1 g of NH_4Cl reacts
How many MOLECULES of phosphorus triiodide are present in 3.72 moles of this compound
A container with a volume of 101 L contains how many atoms of argon gas at STP?
For the reaction BrO3- + 5Br-+ 6H+ ? 3Br2 + 3H2O at a particular time, -?[BrO3-]/?t = 1.5 ? 10-2 M/s. What is -?[Br-]/?t at the same instant
The products were collected and had the following masses: CO2: 1.707 g N2: 0.136 g H2O: 0.7859 g For this compound (CaHbOcNd) what are the integers a,b,c and d in the empirical formula
Boron nitride, BN, has a graphite-like layered structure in which the layers have eclipsed alignment where the B and N atoms in alternative layers in the direction perpendicular to the layers.
The precipitate was filtered, dried, and weighed. A total of 1.55 g calcium flouride was collected. What was the percentage of CsF in the original sample.
Gold can be hammered into extremely thin sheets called gold leaf. If a 202-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft multiplied by 1.0 ft, what is the average thickness of the sheet in meters?
Write the chemical reactions for the steps typically used to isolate titanium metal from titanium dioxide. What is the oxidation number for titanium in each step of the reaction?
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