I need to find the rate law of a reaction but ive only done so when factors cancel out, this one has all different numbers and im not quite sure what to do with it.
It has time taken every second (which im assuming are the different trials) and different concentrations of OH- .. also under the two concentrations they have data for Abs and ln(abs).. which again i am assuming is absolute value and the ln of absolute value but i don't know how to use this information to find the rate law. Ive only ever solved when it has Trails, data for [1], for [2], and the r initial (M/sec)
To find the rate law of a reaction using this data, you would need to analyze the relationship between concentration and time. The rate law describes how the rate of a reaction depends on the concentrations of reactants.
1. Start by looking at the concentration of OH- and the corresponding time taken for each trial. Observe any patterns or trends.
2. Plot a graph of time (on the x-axis) versus concentration of OH- (on the y-axis). This will help you visualize any relationships or dependencies.
3. Next, examine the data for Abs and ln(Abs). Abs likely stands for absorbance, which is a measure of how much light is absorbed by a solution. ln(Abs) means the natural logarithm of the absolute value of Abs.
4. Plot a graph of concentration of OH- (on the x-axis) versus Abs or ln(Abs) (on the y-axis). Again, look for any trends or patterns in the data.
5. If the concentration of OH- has a clear relationship with either Abs or ln(Abs), this information will help you determine the rate law. The rate law may have a direct relationship (positive exponent), an inverse relationship (negative exponent), or no relationship at all (exponent of zero).
6. For example, if the concentration of OH- increases, and Abs or ln(Abs) also increases in a directly proportional manner, you can conclude that the rate law has a positive exponent for [OH-].
7. If the rate law involves multiple reactants, you may need to consider the concentrations of other reactants as well and determine their respective exponents in the rate law.
By analyzing the data and observing the relationships between concentrations and various parameters, including time, absorbance, and natural logarithm, you can determine the rate law of the reaction. It may require careful observation and analysis to obtain the correct rate law equation.