Why do we need to keep water warm in a limiting reactant experiment around 80 to 90 degree celcius
I don't know because I don't know what experiment you're talking about.
DrBob222, they're talking about the reaction between sodium phosphate duodecahydrate and barium chloride dehydrates
In a limiting reactant experiment, it is important to keep the water warm at a specific temperature, usually around 80 to 90 degrees Celsius, for a few reasons:
1. Reaction Rate: Increasing the temperature of a chemical reaction can accelerate the reaction rate. This is described by the Arrhenius equation, which states that the rate of a reaction increases exponentially with temperature. By keeping the water warm, you provide the necessary thermal energy for the reactants to collide more frequently and with higher energy, leading to a faster reaction.
2. Activation Energy: Many chemical reactions have a certain energy threshold, known as the activation energy, that must be overcome for the reaction to occur. Increasing the temperature reduces the average activation energy required for the reactants to convert to products. As a result, more reactant molecules can achieve the necessary energy to react effectively.
3. Equilibrium Shift: Some reactions are reversible, meaning they can go back and forth between reactants and products until reaching equilibrium. By heating the water, you can shift the equilibrium towards the products' side, as higher temperature favors the forward reaction. This can be beneficial when you want to obtain a greater yield of the desired product.
To keep the water at a consistent temperature during the experiment, you can use various heating apparatus, such as a water bath or a thermostat-controlled hot plate. These tools allow you to regulate and maintain the desired temperature range throughout the course of the reaction. It is crucial to closely monitor the temperature to ensure accurate results and reproducibility.