assignment 4 and 3 pls

Assignment 3. Benzoic acid FTIR spectra . BENZOIC ACIO Asssignment Figure3. Analyze the stretches and label the peaks of Benzoic acid FTIR Spectra Assignment 4. Benzoic acid FTIR spectra on Library search - Regardless of the computer, a library search is performed by mathematically comparing your unknown spectrum to each of the spectra in a library. The library search software uses what is called a search algorithm to generate a number describing how similar, or different, the two spectra are. Random similarity in the noise and artifacts between two spectra can give search results more similar than reality. Conversely, random differences in noise and artifacts between two spectra can make them poorer matches than reality. In this case, we search for benzoic acid in library. Similarity result obtained as in the Asssignment Figure4. - Please explain the possible reasons of 75.947% of search score. - How can maximize the probability of finding a onnd match for librarv search? Asssignment Figure4