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what is this equation and why is it central to the global warming theory: SO2(g) + H2O(l) <=> H2SO3
6 moles of a mixture that contains 0.7 mole fraction propane (C3H8) with the remainder methane (CH4). It is burned in air with a 10% excess of oxygen.
A piece of copper alloy with a mass of 60.0 g is heated from 21.0 ?C to 44.0?C. In the process, it absorbs 507 J of energy as heat. What is the speci?c heat of this copper alloy.
Calculate the number of moles of HCl in the solution dispensed and its associated error.
What is the purpose of using acetic anhydride in an experiment reacting with salicylic acid to produce acetylsalicylic acid. The answer should include a description of the function of this reagent in terms of how it behaves in the reaction solutio..
What are the frequency and energy of a photon with a wavelength of 900 nm. Report your answers to three significant digits.
The initial temperature of the water was 25.4 C and the final temperature of both the water and metal was 36.6 C. If the specific heat "c"
A solution was prepared by mixing 43.00 mL of 0.190 M HNO3 and 108.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
A volume of 25.0 mL of 0.100 M HCO2H(aq) is titrated with 0.100 M NaOH(aq). What is the pH after the addition of 12.5 mL of NaOH? (Ka for HCO2H = 1.8 × 10-4)
The work function of an element is the energy required to remove an electron from the surface of the solid element. The work function for lithium is 279.7 kJ/mol.
The rate constant for a certain reaction is k = 1.50×10?3 s^-1 . If the initial reactant concentration was 0.650M , what will the concentration be after 13.0 minutes?
what mass of ammonium chloride can be added to 100 grams of water at 20 degrees celcius before the solution becomes saturated?
The enthalpy of formation of ethanol, C2H5OH, is 277.o kJ/mol at 298.15K. Calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 and H2O.
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