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Describe the role of the standard free energy change in bioenergetics. What specifically is meant by different levels of the standard free energy change'? What effect does adding an enzyme to a reaction have on this? On delta G? What are the roles of delta G in biochemical reactions (list two)?
Find the pH of a 0.15 M solution of ammonia, NH3. Kb = 1.8*10^-5
What mass (in grams)of KNO3 would have to be decomposed to produce 27.1 L of oxygen measured at STP?
if a nail polish remover contains 172mL of acetone how much heat is released in a complete combustion.
Use the Beer-Lambert Law to calculate concentration given the following information
A buffer solution was prepared by adding 4.95 g of sodium acetate, NaCH3CO2, to 2.50 x 10^2 mL of 0.150 M acetic acid, CH3CO2H. What is the pH of the buffer?
Reaction of 2.042g zinc with 2.005g iodine produces 2.510g zinc iodide, leaving 1.518g of unreacted zinc. According to these data, is the law of mass conservation verified within 1% error?
What is the value of Î"Go in kJ at 25 oC for the reaction between the pair: I2(s) and Br-(aq) Use the reduction potentials for I2(s)
a sample of H2O with a mass of 46.0 grams has a temperture of 100 c. how many joules energy are necessary to boil the water
if a liquid has a density or 1.17 g/cm(3) and a mass of 3750 g calculate the volume?
Multiple choice questions in nuclear chemistry - which equation represents the balanced nuclear equation
A star is estimated to have a mass of 1 1036 kg. Assuming it to be a sphere of average radius 7.0 105 km, calculate the average density of the star in units of grams per cubic centimeter.
The below table lists pressure and volume measurements for air in a cylindrical piston of an air compressor. The variables may be assumed related by: PV^k=C
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