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Disposable lighters contain liquid butane (C4H10) that is vaporized and then burned to and produce CO2 and H2O. Include states of mater, and use only whole number coefficients. Balance the chemical equation for this combustion reaction.
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.808 times that of the initial number of microstates
Why is the partial charge on a hydrogen atom bonded to a highly electronegative element more concentrated than for any other element?
1) Determine the correct formula for each reactant and product. 2) Determine the correctly balanced chemical equation.
A flask contains 0.180 of liquid bromine,. Determine the number of bromine molecules present in the flask.
sulfuric acid from an automobile battery requires 35.08 mL of 2.12 M sodium hydroxide solution for complete neutralization. What is the molarity of sulfuric acid ? the reeaction is H2SO4 + 2NaOH to 2H2O+ Na2SO4
What is the most stable conformation about the C3-C4 bond of 2,3-dimethylpentane
A 10.0 mL solution of 0.300 M NH3 is titrated with a 0.100 M HCl solution. Calculate the pH after the addition of 20.0 mL of the HCl solution.
we used 5 different concentration levels to test the absorbtion a potato slice had (to increase its weight) then we had to make a scatter plot chart and find the isotonic point
estimate the enthalpy of vaporization of water 100 degree celcius from its value at 25 degree celcius (+44.01 kJ mol^-1) given the constant pressure heat capacities of 75.29 kJ^-1mol-1 and 33.55 kJ-1mol-1 for liquid and gas, respectively.
Explain which of the following substance has the lowest melting point: Al2O3, C, MgF2, NaCl, KBr.
Air is 21% by vol oxygen. Oxygen has a density of 1.31 g/l what is the volume in liters of a room that holds enough air to contain 75kg of oxygen
A 0.050 M H2S solution contains 0.15 M NiCl2 and 0.35 M Hg(NO3)2. What pH is required to precipitate the maximum amount of HgS but none of the NiS
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