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Equilibrium system given: Fe3+(aq) + SCN- (aq) <- -> FeSCN2+(aq) Equilibrium system Net ionic equation? What are the net ionic equations for the following: Equilibrium system + : 1.+1M Fe(NO3)3 2.+1M KSCN 3.+0.1M AgNO3 4.+ conc. HCl 5.+ 0.1M Hg(NO3)2 6.+1M Na2PO4 7.+0.1M Na2C2O4 8.+ Solid NaF 9. + heat
Aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide.
A rock sample contains traces of 238U, 235U, 232Th, 208Pb, 207Pb, and 206Pb. Careful analysis shows that the ratio of the amount of 238U to 206Pb is 1.164
A gaseous reaction occurs at a constant pressure of 50.0 atm and releases 67.9kJ of heat. Before the reaction, the volume of the system was 8.80L . After the reaction, the volume of the system was 2.80L .Calculate the total internal energy change ..
What volume and mass of steam at 100 degrees celsius and 760 torr would release the same amount of energy as heat during condensation as 65.5 cm(cubed) of liquid water would release during freezing?
What mass of sucrose should be combined with 541 of water to make a solution with an osmotic pressure of 8.30 at 295 ? (Assume the density of the solution to be equal to the density of the solvent.)
an automobile gasoline tank holds 21 kg of gasoline. When gasoline burs, 81 kg of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
Calculate the expected change in temperature for 4.5 g of NH4NO3 dissolved in 100.0 mL of H2O. Assume that the calorimeter absorbs no heat.
Calculate the mass of lead [0.0308 {\rm cal}/({\rm g} \times^\circ {\rm C})] that releases 53.5cal as the metal cools from 36.0^\circ C to 25.2^\circ C. If the initial temperature is 28.9^\circ C, what is the final temperature
What is the percent yield of the Sodium borohydride reduction experiment if the final weight of the product is .668 grams, the melting point of the final product is138-141C and there is no participate in the final solution?
A flask contains 0.110 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
Researchers analyzing an unknown hydrocarbon with chemical formula CxHy found that 225 grams of O2(g) were required for complete combustion of 1.0 mol CxHy, to form CO2(g) and H2O(g) only.
A 1L steel tank has a safety valve that opens when the internal pressure exceeds 850 torr. The tank is filled with He at 23 oC and 0.991 atm.
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