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A particular brand of gasoline has a density of 0.737 g/mL at 25degrees C. How many grams of this gasoline would fill a 12.0 galtank?
Which statement best describes relationships in a modern periodic table? A.) Each transition element is placed in the column of the main group element that it most closely resembles.
At 600 degrees C, the equilibrium constant for the reaction 2HgO(s) --> 2Hg (l) +O2 (g) is 2.8. Calculate the equilibrium constant for the reaction 1/2O2(g) + Hg(l) --> HgO (s)
A 15.6 mL sample of a 0.387 M aqueous hydrocyanic acid solution is titrated with a 0.346 M aqueous barium hydroxide solution. What is the pH at the start of the titration, before any barium hydroxide has been added
calculate the molar solubility of calcium carbonate in 0.050 molar calcium chloride and ksp for calcium chloride is 3.8X10^-9.
what is the freezing point(Degrees C) of a solution prepared by dissolving 11.3g of Ca(NO3)2 ( formula weight= 164g/mol) in 115g of water?
a gas company charges 1.30 for 15.0 cubic feet of natural gas. a convert this rate to dollars per liter of gas. b if it
Derive parameters of the critical point for the Dieterici equation of state: p(V - b) = RTe^(-a/RTV). A sample of nitrogen of mass 3.12 g at 23 C is allowed to expand reversibly and adiabatically
What volume of 0.25 M HCl solutions must be diluted to prepare 1.00 LK of 0.040 M HCl?
What is the molarity of an HCl solution if 22.3 mL of the solution is required to react with 0.266g of Na2CO3?
Write out the chemical equation and the equilibrium constant expression based on the concentration.
What is the equilibrium partial pressure of N2O4? (atm) (b) Calculate the value of Kp for the reaction. (c) Calculate the value of Kc for the reaction.
Dissolving 4.69g of an impure sample of calcium carbonate in hydrochloric acid produced 1.07 L of carbon dioxide (measured at 20.0 degrees Celcius and 737mmHg). Calculate the percent by mass of calcium carbonate in the sample.
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