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The mole fraction of oxygen molecules in dry air is 0.2095. What volume of dry air at 1.00 atm and 25°C is required for burning 1.00 L of hexane (C6H14, density = 0.660 g/mL) completely, yielding carbon dioxide and water?
However, a water transporter was discovered in 1992 and it was named aquaporin. Aquaporin is a single subunit protein that is barrel-shaped and open to both sides of the membrane
Arrange these ions in order of increasing ionic radius, starting from the smallest first? N^3- , O^2-, Mg ^2+ , Na+ , F- I have been told the answer is the following: 1. N^3- (Nitrogen) 2. Mg^2 (Magnesium) 3. Na+ (Sodium) 4. F- (Fluorine) 5. 0^2- ..
at is the pH of this new solution. Assume no volume change after NaOH(s) was added. Molar Mass NaOH= 39.998 g/mol. Answer given was pH = 13.52, What are the steps to get here
the enthalpy of formation of ethanol c2h5oh is -277.0 kjmol at 298.15k. calculate the enthalpy of combustion of one
Describe the use of enzymes in the body, including how they affect the citric acid cycle
The major source of aluminum in the world is bauxite (mostly aluminum oxide). Its thermal decomposition can be represented by: 2Al2O3 (s) = 4Al (s) + 3O2 (g) deltaHrxn = 1676 kJ.
Which substance contains molecules that will not form hydrogen bonds?
Assuming 100% yield, calculate the final concentrations of reactants and products. Calculate the pH of the final solution
The reaction takes place in a bomb calorimeter where 4.50g of glucose are burned. What is the heat capacity of the bomb if the temp. of the water in the bomb increases from 22.75 degrees Celsius to 25.32 degrees Celsius?
Write balanced half-reactions and the overall spontaneous reaction. (Type your answer using the format [NH4]+ for NH4+. Use the lowest possible coefficients.)
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 7.00 nm in diameter? Take the m..
Write a balanced the rmochemical equation for the reaction with an energy term in kJ as part of the equation.
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