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- Lemon juice contains citric acid (C6H8O7). What speciesserves as a base when lemon juice is mixed with bakingsoda (sodium hydrogen carbonate) during the preparationof some lemon cookies?What coefficients must be placed in the following blanks sothat all atoms are accounted for in the products?C6H12O6 S _________ C2H6O + _________ CO2(A) 2; 1(B) 3; 1(C) 1; 3(D) 2; 21. a. Explain why the melting point of palmitic acid (16 carbons, no double bonds) is slightly lower thanthat of stearic acid (18 carbons, no double bonds). Explain why the melting point of oleic acid (18carbons, one double bond) is lower than that of stearic acid b. A mixture of lipids containing phosphatidic acid, cholesterol, testosterone, phosphatidylserine, andphosphatidylethanolamine was applied to a hydrophobic interaction chromatography column. Thecolumn was washed with a high salt buffer, and the lipids were then eluted with decreasing saltconcentrations. In what order would the lipids be eluted from the column? Explain your answer.
- 1. For the test for sulfur in egg albumin, would you conclude that sulfur is present on it? Explain. 2. If sulfur is present in egg albumin, what are the possible organic compounds which contains sulfur on it? You can search the internet for this. Cite your references.2(a) Briefly explain how the protein test for dairy products was cheated by the adulteration of the products with melamine. 2(b) Briefly explain why occasionally it was found that some fresh seafood sellers treated the seafood products with formaldehyde solution.Which of the following compounds would be most soluble in carbon tetrachloride, CCl4? a. NH3 d. CH3OHb. H2O e. C6H6c. HCl
- What is the empirical formula for C3H6O3? C3H6O3 C6H12O6 CH2O None of these1) Determine the functional group(s) in the compound having the following IR spectrum. 2) Identify the diagnotic signal(s) , explain what led you to this conclusion.Propanamide and methyl acetate have about the same molar mass, both are quite soluble in water, and yet the boiling point of propanamide is 486 K, whereas that of methyl acetate is 330 K. Explain.
- The H⁺ concentration in an aqueous solution at 25 °C is 4.3 × 10⁻⁶. What is [OH⁻]?Suppose you have extracted an alkaloid from natural sources how will you establish the structure of an unknown alkaloid by chemical and physical methods.(PLEASE BRIEFLY EXPLAIN)Soft drinks usually have a pH of approximately 3.1. What is the [H3O+] concentration in a soft drink?