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Calculate/determine the HDI (Hydrogen Deficiency Index) of a compound containing 1 ring, 1 amide, 2
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- A researcher conducted an experiment and needed to use L-Leucine. He is able to scavenge four bottles that have faded labels and impossible to identify which enantiomer of leucine or isoleucine it contains. The researcher remembers his melting point lab and decides to classify the identity of the compounds based on the melting point. He experimentally determines a melting point for each bottle: (see table or image attached)i. 291-295 °Cii. 283-287 °C iii. 289-291 °C iv. 292-294 °C Which of the following bottles is L-Leucine?1) A polyester made from sebacic acid (CAS# 111-20-6) and 1,6-hexanediol (CAS# 629-11-8) has the molecular weight fractionation listed below. Calculate an appropriate average molecular weight for this polyester. Source: Batzer, H., Macromolecular Chemistry and Physics 5Give the functions of the following ingredients, then name a branded/commercial skin or hair care product where the said material is used. Tetrasodium EDTA Cholesterol Silicone Oil 200/50 cst BETAINE Carbopol Ultrez D & C Red No. 17 ( CI No. 26100) Bisabolol (Alpha Bisabolol) Ceresin Wax Disodium Lauryl Sulfosuccinate Hydroxypropyl Methylcellulose
- Identify the Ergosterol peak of the GC-MS of Burn Morel mushrooms (Tomentosa) and the M (+/-) peaks that are present. Include the mass and signature intensities of the peaks main product.Identify the Cholesterol Sterate peak of the GC-MS of Burn Morel mushrooms (Tomentosa) and the M (+/-) peaks that are present. Include the mass and signature intensities of the peaks main product.A student was trying to determine the identity of an unknown compound. The melting point of the compound was 117-118oC. The student narrowed the possible compound down to the following: Compound Melting Point Range acetanilide 113-115oC fluorene 114-116oC mandelic acid 120-122oC A second student, doing the same experiment as above, found that their melting point was 100-108oC. What is wrong with the student’s melting point? Propose two reasons why the melting point could be incorrect. View keyboard shortcuts