third reaction involves molecular iodine becoming a dark blue starch;I2(aq) + starch blue-black complex3. These three reactions react in a sequence. In any reaction the concentration is exponentially related to the rate of the reaction. The rate of the reaction is dependent on potassium iodate4. Therefore as the concentration increases‚ the rate of the reaction also increases. Since the rate of the reaction is inversely proportional to time‚ as the
Premium Chemical reaction Chemistry Iodine
Total CO2 Evolved by Different Concentrations of Convollaria roots. Actual values are the graduated pipette readings. For CO2 evolved values‚ subtract the initial reading from the actual reading. This is the amount of CO2 accumulated over time. | Time (min) | Tube 1 | Tube 2 | Tube 3 | Tube 4 | | Actual | CO2 Evolved | Actual | CO2 Evolved | Actual | CO2 Evolved | Actual | CO2 Evolved | | (A) | (A-I) | (A) | (A-I) | (A) | (A-I) | (A) | (A-I) | Initial reading (I) | 0.05 | | 0
Premium Yeast Bacteria Metabolism
Determining the Unknown Concentration of NaHCO3 (aq) Through Titration Introduction Titration is the accurate addition of a titrant- solution in a burette- into a measured volume of a sample (Kessel‚ 2003). There are many different types of titration‚ such as acid-base reaction‚ redox reactions‚ precipitation reaction and more (Dohrman). In this lab an acid base titration will be explored. In an acid-base titration‚ the concentration of an acid or base is unknown and is determined by the adding
Premium Chemistry PH indicator Sodium hydroxide
The Effect Of Substrate Concentration On The Activity Of The Enzyme Catalase A Level Biology Project Aims This is an experiment to examine how the concentration of the substrate hydrogen peroxide affects the rate of reaction of the enzyme catalase. Background Information Enzymes such as Catalase are protein molecules which are found in living cells. They are used to speed up specific reactions in the cells. They are all very specific as each enzyme just performs one particular reaction. Catalase
Premium Hydrogen peroxide Enzyme Oxygen
“Between 1.1 and 1.5 million people died at Auschwitz; 90 percent of them were Jews” (“Auschwitz”). Concentration camps were large numbers of people; mostly Jews enduring forced labor and mass executions. One of the concentration camps during the Holocaust was Auschwitz. Auschwitz-Birkenau had a unique design‚ a horrible daily life for those in it‚ and is greatly remembered for what happened at these camps at the end of the war. Nazi Germany set up camps with a specific design that would help them
Premium Nazi Germany The Holocaust Adolf Hitler
The book “Night” and its topic of the concentration camps of Auschwitz and Buchenwald is very essential to the story. Wiesel describes these camps with great detail and emotion which got my attention and curiosity. With the research I have collected I learned that Auschwitz and Buchenwald were two major concentration camps to the Nazis in Germany that were mainly for either executing prisoners or forcing them to work in a variety of different fields. These two camps were known more as complexes
Premium Elie Wiesel The Holocaust Auschwitz concentration camp
The Effect of Concentration‚ pH and Temperature on Enzyme Activity Biology For Majors October 4‚ 2012 Abstract We examined the reaction an enzyme has when its concentration‚ pH and temperature are altered. In order to do this‚ we added different levels of pH into different test tubes with the enzyme (sucrose)‚ and substrate (sucrose)‚ and we then inverted the tube. The higher pH produced more enzyme activity. Temperature effects enzyme activity by decreasing its stability when the temperature
Premium Enzyme PH Chemical reaction
Name: ________________________________ Date: __________________________ Lab Partner: _____________________________________________________________________ Investigating Factors that Affect the Rate of Enzyme Activity See Textbook Pg 61. Enzymes are very large complex organic molecules that are synthesized by the cell to perform specific functions. These biological catalysts are important because they speed up the rate of the reaction that would otherwise be too
Premium Oxygen Enzyme Hydrogen peroxide
water molecules from a region with high concentration to a region with low concentration. This movement must take place across a partially permeable membrane such as a cell wall‚ which lets smaller molecules such as water through but does not allow bigger molecules to pass through. This process will take place until it reaches the equilibrium state‚ which means that the water molecules will be distributed until there are no regions with high or low concentrations. Plant cells have a protective layer—called
Premium Osmosis Concentration Water
Variables Affecting Urine Output and Solute Concentration BIOL 204 505 Anatomy and Physiology II Author: Lab Partners: November 29‚ 2013 Purpose Three experiments were performed to determine the effect on Specific Gravity‚ NaCl Concentrations and Urine Output with the variables consisting of consuming water‚ salty chips‚ sports drink‚ diet and regular soda‚ and a control group which consumed nothing. Results Baseline Values and Chemstick Analysis Observation/Test Normal
Premium Urine Blood Sodium