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For an enzymatic reaction, a biochemist at UC Davis has determined a standard enthalpy of -10.5kJ/mol and a standard entropy of +2 J/mol. When he measured the concentration of products and reactants (not at equilibrium) under the conditions of human body temperature as 2 micromoles of products and 17.3 micromoles of substrate.
what was the current free energy difference at that point of the reaction?
Boron has two naturally occurring isotopes, 10B (19.9%)and 11B (80.1%). Although the B2 moleculedoes not exist naturally on Earth, it has been produced in the laboratory and observed in stars. (a) How many differentB2 molecules are possible? (b) W..
briefly discuss interpretations of your observations and results. discuss how your observations illustrated
What is the final temperature, (in oC), after a 26.0 gram piece of ice at 0oC is placed into a styrofoam cup with 119.0 grams of water initially at 79.0oC? Assume no loss or gain of heat from the surroundings.
Calculate the concentrations of all species in a 1.44 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
You are given a worked wooden item from an archaeological dig believed to date to during the last glaciation. As such, the artifact would be another piece of evidence.
Metals and nonmetals can react with each other to form ions. Complete these statements. A potassium atom gain or loses(electrons/protons/neutrons)and to form how many ion?
Explain why evaporation is a cooling process. Relate average kinetic energy to temperature in your answer
A scientist wishes to prepare a 1L sample with the approximate composition of seawater for use in the laboratory: what reagents would you recommend and what mass of each
Propose a mechanism involving a hydride shift or an alkyl shift for this solvolysis reaction. All compounds involved in each stage of the mechanism must be enclosed in a box, and each box must be connected to the next one with a straight arrow.
the volume of an ideal gas is increased from 0.8m3 to 2.4 m3 while maintaining a constant pressure of 1000 pa 1pa1nm2.
This strontium isotope is radioactive, with a half-life of 28.1 yr. Calculate how long it will take for 0.890 g of the isotope to be reduced to 0.250 g by decay.
Provide a detailed mechanism to account for the conversion of D-fructose into two equivalents of pyruvaldehyde. (Hint: glyceraldehyde will be an intermediate.)
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