I did a lab where I had to determine avogadro's number.

I need to find the uncertainty in number of moles of stearic acid. There were 3 trials and these are the values for the # of moles of stearic acid used for each trial:
4.39E^-7
4.60E^-7
4.50E^-7
I just need help finding the uncertainty

would it be 1.05E^-8?

https://www.youtube.com/watch?v=riMzriytw40

To find the uncertainty in the number of moles of stearic acid, you can calculate the standard deviation of the data set. The standard deviation measures the spread of the data values around the mean. Here's how you can do it:

1. Calculate the mean (average) of the three values:
mean = (4.39E^-7 + 4.60E^-7 + 4.50E^-7) / 3

2. Calculate the variance, which is the average of the squared differences between each value and the mean:
variance = [(4.39E^-7 - mean)^2 + (4.60E^-7 - mean)^2 + (4.50E^-7 - mean)^2] / 3

3. Take the square root of the variance to get the standard deviation:
standard deviation = sqrt(variance)

The standard deviation gives you a measure of how spread out your data points are from the mean. It represents the uncertainty in the measurements.