Determine the resulting ph when a pharmacy student
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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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.
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?
A aqueous solution which is having a 250 ml M contains the 1.560 gm of ammonium chloride (NH4Cl) pKb of NH4OH is 4.757
Assume the acidity observed in the human gastric juice is totally due to the presence of hydrochloric acid (HCl). If the observed pH in the gastric juice is equal to 2.00
How can calculate the pH of a solution of when it is having 0.01MHNO3 How can determine the concentration of hydroxide ion at PH 10
A 1.00 u g sample of a radioactive material contains 6.0x1014 nuclei. After 48 hrs 0.25 ug of the material remains. Determine the half life of the material?
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