Effect of Color of Light on the Rate of Photosynthesis: Lab Explained

Background information: Photosynthesis is the process in which plants go through to produce energy in the form of glucose required to survive. It is a chemical reaction that involves the use of carbon dioxide, water, and light. This process of photosynthesis takes place in the chloroplasts that are found in the leaves of the plant.…

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…

Temperature of Hot Water and Cooling Rate Lab

Introduction: The rate at which an object cools (i.e. how quickly its temperature decreases) depends upon several factors, including: Surface area Volume Type of insulation Temperature difference with the surroundings For this investigation, the effect of the temperature of water upon the rate of cooling will be investigated. The temperature-drop over 5 minutes (600 seconds)…

Single Displacement Reactions Lab Explained

Purpose: Two observe two different single displacement reactions. Hypothesis: When zinc is added to copper (II) sulfate, a single displacement reaction will take place, creating a solid, copper, and zinc sulfate. When zinc is added to hydrochloric acid, hydrogen gas will be released a solid, zinc chloride, will be formed. Materials: Hydrochloric acid Zinc Copper…

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…