Explain how would you calculate the exact number of cells
Explain how would you calculate the exact number of cells in one mL of culture? There are approximately 10^9 cells/ mL in a culture of E. coli cells grown overnight.
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What are the hydronium ion concentration and the pH of the solution when a student prepared a 0.10 M solution of acetic acid, CH3COOH and the acetic acid has a Ka of 1.75 x10-5.
Determine the entropy change of the substance associated with the freezing process (in J/mole/K, with three significant figures). A certain amount of heat, 5.21 kJ, is released during the reversible freezing of one mole of a substance at
Water in contact with air is acidic, rather than neutral, due to dissolve the carbon dioxide. Water in equilibrium with air contains 4.4 x 10-5% CO2.
Discuss why is it important to isolate single colonies and to use only the isolated colonies in this experiment and in biotechnology in general when the cells that are used in the plasmid prep lab are grown from a single colony in Luria Broth.
Determine the number of molecules in anagrams gel electrophoresis band which has.05 micrograms of a1000 bp fragment of the DNA. There are 660g/mol/bp where the Avogadro's number is 6.02 x 10^23.
Explain how the bonds form between Sulfur (S) and each Fluorine (F) atom in SF6 by using the valence bond theory to how to combine all the promoted electrons into a hybrid.
Discuss in terms the valance bond theory and the electron configuration why it is possible to have a PH5 molecule but not a NH5?
If the pKa value of benzoic acid is 4.2 determine the resulting pH when a pharmacy student prepared an acidic buffer solution containing the equal concentrations of benzoic acid and the sodium benzoate.
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