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Question- What might prevent a restriction enzyme from cutting the DNA of the organism from which they are derived?Example the EcoRI restriction site is present in a plasmid but experimental evidence shows no cutting of the DNA after the usual protocol is followed?
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While doing sn2chemistry- synthesis of 1-bromobutane from butan-1-ol, why would the crude product likely contain organic impurities as well as why would you dry the 1-bromobutane before distillation
Which solvent displayed the strongest propensity to encourage keto-enol tautomerization. CHCl3, DMSO, CH3OH? Or does this propensity more closely follow the type of solvent it falls under (such as nonpolar, polar aprotic, or polar protic).
If one ignores the thermal expansion of glass and any weighing errors due to the buoyancy effect, does the volume of water actually delivered by a volumetric pipet differ as a function of the temperature of water used in the calibration
Explain how would you expect the conductivity of the solution to change during the titration of a strong acid with a strong base. Explain How would expect the conductivity of the solution to change during the titration of a weak acid with a strong..
Determine the % error for the quantity (0.5022g+-0.3mg) 2. Determine the % relative error for the following quantities
If a vessel containing NO2 has an initial concentration of 2.8 x 10-2 mol/L, how long will it take for 75 of the NO2 to decompose? The decomposition of NO2 is second order in the reactant and the rate constant is 1.1 L/mol x s.
Calculate the pH of 100. mL of 0.31 M NH3 before and after the addition of 4.5 g of NH4NO3, and account for the change. Assume that the volume remains constant.
Calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 3. (?H°f (HgO(s)) = -90.7 kJ/mol and ?H°f (FeO(s)) = -272 kJ/mol.)
a portable electric water heater transfers 255 watts wof power to 5.5l of water where 1w1js how much time in minutes
1.25g sample of a benzoic acid with a heat capacity of 25.0kjgwas burned in a bomb calorimeter and the temperature of
Isopropyl alcohol is mixed with water to produce a 31.0% (v/v) alcohol solution. How many milliliters of each component are present
Suppose that ammonia (a monoprotic base), applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water. If the pH of this pond is found to be 9.81.
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