30) Show an increase in the order of the acidity for the following aromatic acids: (i) p-ethyl benzoic acid, (ii) p-nitro benzoic acid, (iii) p-cyano benzoic acid (a) (i) < (iii) < (ii) (b) (ii) < (i) < (iii) (c) (i) < (ii) < (iii) (d) (iii) < (i) < (ii)

What is the amino acid product of the following reaction scheme? H₂N CO₂ toly fon OH H₂N of rorot NaHCO3 water/dioxane t H₂N ? I fo O IZ удах

The biruet method uses what reaction to quantify total protein in serum?     Question 4 options:   A)  Cupric ions + peptide bonds in alkaline medium --> violet colored chelate   B)  Ferric ions + carboxyl bonds in alkaline medium --> aqua colored chelate   C)  Cupric ions + carboxyl bonds in acidic medium --> aqua clored chelate   D)  Nitrogen determined via titration with HCl

Select the correct statements about the isoelectric point of a protein. ( all that may applied ) - the charge on the protein will be neutral. - the pH of the solution will always be greater than 7. - the protein molecules will dissolve into solution. - the pH of the solution will ways be less than 7. - the protein molecules coagulate and precipitate from solution - the number of positive charges on the protein will be equal to the number of negative charges. - the pH of the solution will always be exactly 7.