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Yeast is used as a leavening agent in bread making. The yeast metabolizes with the natural carbohydrates in the flour, converting them to CO2 and ethyl alcohol and it is the CO2 gas that raises the bread. So, when making yeast bread it is very important that the mixture not be overheated during the leavening process because if it is overheated the bread will not raise. Explain in terms of protein denaturation.
Suppose 1-chlorobutane were halogenated with bromine atoms instead of chlorine atoms. What effect would that have on the relative yields of the four bromochlorobutanes compared to the dichlorobutanes you determined
Describe equlilbrium in terms of a liquid-vapor system. Why is this situation reffered to as dynamic equilibrium?
The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?
A mixture of gases conssists of CH4 at a partial pressure of 143 mm Hg, N2 at a partial pressure of 469 mm Hg, and O2 at a partial pressure of 563 mm Hg
The reaction and rate law for the gas-phase decomposition of dinitrogen pentaoxide are 2 N2O5(g) ---> 4 NO2(g) + O2(g), rate = k[N2O5]. Which of the following can be considered a valid mechanism(s) for the reaction
Calculate the volume of a sample gas at 5.75 atm if it occupies 5.61 L at 2.18 atm. (Assume constant temperature.)
In visible spectroscopy we place a sample in a source and observe transmittance. if we observe 420nm absorbed by the sample what color would our eye observe. explain this process in some detail
The rate constant for the first order reaction below is K=3.3*10 -2 min -1 at 57 Kelvin. what is the half life for this reaction at 57 Kelvin
Write the balanced net ionic equation for the reaction between MnO4 - ion and Fe2+ ion in acid solution
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 8.10 nm in diameter?
Draw the isomer of C4H8Br2 that has the following 1H NMR spectrum: 1.97 (s, 3 H), 3.89 (s, 1 H).
Can the change in a state function be equal to the difference of two non-state functions. Give an example.
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