In lab, a student was given a hydrated version of NiCl2 as the unknown. The initial mass of the hydrated salt was 0.821 g. The student heated the crucible for 10 minutes with the cover slightly ajar. After cooling, the dried salt weighed 0.448 g. Based on these results, answer the following questions. What is the chemical formula for this compound?  What is the IUPAC name for this hydrate?

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Q: In lab, a student was given a hydrated version of NiCl2 as the unknown. The initial mass of the…

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Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.