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The normal boiling point of pure water is 373 K. As a solute dissolves in water, the boiling point of the solution will (a)Decrease (b)Change unpredictably (c)Remain the same (d)Increase
If the standard enthalpy of combustion of octane, C8H18(l), at 298 K is -5471 kJ x mol-1, calculate the standard enthalpy of formation of octane. The standard enthalpies of formation of carbon dioxide and liquid water are -393.51 and -285.83 kJ x ..
969 ml of gas was collected at 64 degrees celcius and a pressure of 723 mm Hg. Find the volume at STP.
For a mass of 0.010 g Mg and 5.0 mL of 1.00 M HCl, calculate the partial pressure of the resulting H2(g) in a flask with V = 145 mL at 25?C.
What is the standard free energy change (kJ) for the following reaction at 499.0 K ? [Note: Answer should be expressed as "xxx.x", or with one sig fig after the decimal
Suppose you have made 1L worth of a mixture of methanol and water, by mixing 3 parts of methanol and 2 parts of water by mass. Assume for simplicity that the volume of the mixture is exactly equal to the sum of the volumes of the ingredients
Given the following substances and their melting points, hydrogen, -259 degrees Celsius, ethyl alcohol, -114 degrees Celsius, water, 0 degrees Celsius, sucrose, 186 degrees Celsius, and calcium chloride, 772 degrees Celsius
Fish produce glycerol to survive the freezing waters of the Arctic. Determine the degree to which the freezing point of blood and other biological fluids is lowered with the help of glycerol. What is the ideal concentration range of glycerol requi..
The osmotic pressure of solutions of polystyrene in toluene were measured at 25?C and the pressure was expressed in terms of the height of the solvent of density 1.004 g cm-3.
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
what is the chemical calculation to figure out the following: what mass of the indicated solute does the following solution contain: 17.8 ml of 0.119 M CaCl2
If a reaction between Zn and I2 takes place, are the physical and chemical properties of the substances isolated during and after mixing the same as or different from those of Iodine and Zinc? Explain using the reaction as an example.
In the reaction below, 3.84 atm each of H2 and Cl2 were placed into a 1.00 L flask and allowed to react: H2(g) + Cl2(g) 2 HCl(g) Given that Kc = 62.1, calculate the equilibrium pressure of HCl.
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