Properties of Ionic and Molecular Substances Lab

Procedure  Examine the following chemicals at their various stations: NaCl        Ethanol                  CuSO4           NH4NO3                  Kerosene       Sulfur      CaSO4 Ca(NO3)2  Sucrose                  Unknown      O2                          K3Fe(CN)6 Record your observations in a table with the following headings: Name, Formula, Ionic or Molecular, State at RT, Solubility, Colour of Solution, Conductivity of Solution, Melting Point, Boiling Point Analysis Questions Make a…

Coronary Artery Disease (Ischemic Heart Disease): Overview & Coronary Artery Disease (Ischemic Heart Disease): Overview & Pathophysiology

Coronary artery disease is a condition  in which fatty deposits (atheroma) accumulate in the cells lining the wall of the coronary arteries. These fatty deposits build up gradually and irregularly in the large branches of the two main coronary arteries which encircle the heart and are the main source of its blood supply. This process…

Beer’s Law Lab Explained: Absorbance vs. Concentration

Introduction: According to Beer’s Law, A=Ebc, under ideal conditions, a substance’s concentration and its absorbance are directly proportional: a high-concentration solution absorbs more light, and solution of lower concentration absorbs less light. Since concentration and absorbance are proportional, Beer’s Law makes it possible to determine an unknown concentration of phosphate after determining the absorbance. The…