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The hydrocarbon benzene C_6_H_6_ boils at 80.1 C. How much energy is required to heat a 1.00 kg of this liquid from 20 C to the boiling point and then changes the liquid completely to a vapor at that temperature?
The specific heat capacity of the liquid C_6_H_6_ is 1.74 Jg^-1C^-1 and the enthalpy is 395 J/g Report results in joules.
Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the chemical equation shown below. When 0.030 mol of Na is added to 100.00 g of water, the temperature of the resulting solution rises from 25.00°C to 37.90°C..
How are the atoms, covalent bonds, lone pairs, and electrons pair in a Lewis Structure of PCI3
The convention of arbitrarily assigning a zero enthalpy value to all the most stable elements in the standards state and (usually) 298 K is a convenient way of dealing with the enthalpy changes of chemical processes.
Calculate the percent compostion of impure benzoic acid. The orignial weight of benzoic mixture was 4.23 g
determine the final volume of the gas If the gas ocupied 68mL, initally and determine the molarity of the solution
Solid aluminum metal and diatomic chlorine gas react spontaneously to form a solid product. Give the balanced chemical equation (including phases) that describes this reaction.
what volume and mass of steam at 100 degrees c and 1.00 atm would during condensation release the same amount of heat
They are used as foaming agents, propellants, and refrigeration fluids. Freons are controversial because of the damage they do to the ozone layer in the stratosphere. A 5.87 g sample of a particular freon in a 3.45 L bulb at 25.00°C has a pressure..
If you were cooking food in boiling water on the stove, could you increase the speed of cooking by increasing the heat. Why or why not. What is effect does adding salt to water have on the boiling point. Explain
Hydrochloric acid is usually purchased in a concentrated form that is 37.0% HCl by mass and has a density of 1.20 g/mL.
What are the roots for x in this quadratic equation? 2 x2 - 7 x + 0.5 = 0 The larger root is (use 3 significant figs) The smaller root is (use 3 significant figs)
Assuming the mixture has the same specific heat (4.184J/goC) and density (1.00 g/cm3) as water, calculate the heat (in J) transferred to the surroundings
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