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Question: What is the role of RecBCD specifically in the strand invasion step of homologous recombination in E. coli? Do you think ATP hydrolysis plays a role?
Calculate the pH after 0.14 mole of NaOH is added to 1.08 L of a solution that is 0.49 M HC3H5O3 and 1.24 M NaC3H5O3
The equivalence point of the titration occurs at 23.70 mL. Determine the molar mass of the unknown acid.
A wooden artifact from a Chinese temple has a 14C activity of 30.7 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age. From the half-life for 14C decay, 5715 yr, determine the age of the artifact.
What is the complete ionic equation and the net ionic equation between aqueous potassium hydroxide and aqueous acetic acid?
considering the given equation cah2s 2h2ol caoh2aq 2h2g determine how many grams of cah2 are required to generate 145
Go from this constant, and compare your calculated value with that determined from the? Go values from appendix.
The reactant concentration in a first-order reaction was 8.20×10?2M after 10.0s and 6.10×10?3M after 90.0s. What is the rate constant for this reaction
The iron produced in a blast furnace contains significant impurities of carbon, phosphorus, and sulfur. These impurities are removed in a basic oxygen furnace, which converts the impurities to
The temperature of a 2.o-liter sample of helium gas at stp is increased to 27 degrees Celsius and the pressure is decreased to 80kpa what is the new volume of the helium sample?
TCE is added to the aqueous phase so that initally it has an aqueous phase concentration of 100 ppb. After the system equilibrates, what will be the concentration of TCE in the aqueous phase
What is entropy (no measure of disorder, please)? How was it introduced in science? What is its significance in chemistry? Calculate the change of entropy when the volume of 1 g of Helium is doubled, assuming that helium is an ideal gas.
the solubility of a salt in water represents the amount of solute necessary to reach a state of equilibrium between saturated solution and undissolved
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