Error calculations...?

Question

I have done an iodine clock experiment. The reaction is:

H2O2 + 2I- + 2H+ -----> 2H2O + I2

I have varied the concentrations of each to find the order with respect to each reactant. I have worked out the orders by plotting Ln(1/T) Vs Ln[concentration]. The gradient is the order.

Now i have to assess the errors involved in this experiment. I want to find an esimate for the error for the value for the orders.

How do i do this? Because i have varied the concentration alot of times so how to i find the over all error in the order?

Any help will be appreciated. Thanks

Answer 1

This is standard statistics. If you just want the answer, some scientific calculators will give it to you. Otherwise, there is a formula that you need to look up. Not obvious; what you need is the error on the slope, not the scatter on the points.