Reaction

the enzyme catalyzed biological reactions are reversible in nature. However, an enzyme may prefer to catalyze the reaction more efficiently in one direction over the other under given physiological concentrations of substrate or product (substrate in the reverse direction). An enzyme favouring a virtual unidirectional catalysis of an overall reversible reaction can’t escape the laws of thermodynamics. As a catalyst doesn’t change the equilibrium constant of a reaction but only modifies the…

With the knowledge of single displacement reactions, it is common to assume that there will always be a reaction between chemicals that present the opportunity of (metalA) + (metalB + nonmetal) → (metalB + nonmetal) + (metalA). In this lab, this notion will be discarded as the activity series demonstrates the actual nature of single displacement reactions where the metals will only exchange if their activity series levels allow them to do so. To explain…

In this lab there was 2 objectives which where to recognize when a chemical reaction has occurred and practice collecting detailed observations in the laboratory using proper scientific terms. Reaction set #1 (1a) place approximately 1 ml of 0.1 M Pb (No3)2 solution into a test tube. Then sequentially add drops of 0.25M k2CRO4 solution until you see evidence of a chemical reaction. The products of this reaction are aqueous KNO3 and solid PbCrO4. (1b) place approximately I ml of .1M Pb (NO3)2…

Comparing the masses, after and before reaction Aim To determine if mass is preserved in a chemical reaction conducted with vinegar and Sodium bicarbonate. Hypothesis: The mass of the flask and vinegar after the reaction will be less due to the fact that it is losing the gas which is being produced when the elements are mixed. However part B will be altered as the gas will be preserved inside the balloon. Apparatus  Balance  Sodium bicarbonate  Spatula  Measuring cylinder  2 conical…

Fastest Reaction Time Problem or Question: Who has the fastest reaction time in our group? Hypothesis: If Maasilan, Tanveer and I are tested, I think I will have the fastest reaction time. This is because I have the biggest hands in the group, which makes it easier for me to grab the meter stick. I also have good reactions because I play lots of sports that involve catching or throwing. I also have good concentration and focus which helps so that when the person drops the stick, I know when to…

Abstract: The Grignard reaction was successfully accomplished. An amount of 1.20 ml of 2-methyl-2-pentanol was collected, and 9.60% yield was calculated based on the theoretical yield. Despite the low amount of 2-methyl-2-pentanol, its identity was confirmed by comparing the experimental refractive index and infrared spectrum to the literature refractive index and infrared spectrum of 2-methyl-2-pentanol. Statement and purpose The purpose of this experiment is to synthesize a specific alcohol…

experiment is to use reaction stoichiometry to determine the molar mass and the identity of an unknown, powdered metal, and to identify an unknown metal nitrate solution. To give a little background information on this experiment I will start by saying that a balanced chemical equation provides several important pieces of information about a chemical equation. Those important pieces include the substances consumed and formed, the physical states of the reactants and products, the reaction…

Francium so, we inferred that Francium had the worst reaction and must be dangerous. So because of curiosity, we have conducted the same lad to see how these elements reacts ourselves. In this lab, my group and I had to examine chemical reactions. We had to record our observations and list six elements in their order of activity beginning with the most active element to least active element. Our hypothesis was that Hydrogen would have the least reaction because we use in our everyday lives…

Usually, this state results when the forward reaction proceeds at the same rate as the reverse reaction. Chemical reactions vary greatly in the speed at which they occur. Some are essentially instantaneous, while others may take a very long time to reach equilibrium. The reaction is presented by The time in the reaction when the mixture remains colourless is the clock period. This will depend upon the initial concentrations of the sodium bisulphite ions (NaHSO3) and the potassium iodate ions…

I was up in my room, laying down on my couch, practicing questions from my textbook. I had gone to the end of the chapter, trying to find a challenging question to attempt. The question I ended up picking required me to find a balanced chemical reaction equation, but only provided me with how much of each reactant and one product was present, as well as how much present by mass of each element in the given reactants and product there were. Upon beginning, I knew what I had to do and after some…