so what you say is that no mater how many dilution we do the precision stays the same and it depends on the solution we're using.so it means ±0.01 for all diluted solutions we made,right?mfb said:The relative uncertainty stays the same, that is right.
You might get an additional uncertainty if the 5ml or the 100ml are not exact.
No, in this case it would be 8*10-5 +- 2*10-6 as the uncertainty is 1/40 of the value.cham said:so let's assume that final result is true , so it would be 8*10^-5 ±1/40 and so for all resulting solutions
Precision refers to how close a series of measurements are to each other, while accuracy refers to how close a measurement is to the true or accepted value.
Having a solution that is both precise and accurate ensures that the results are reliable and can be replicated. It also allows for better understanding and interpretation of the data.
Precision can be improved by reducing sources of error and increasing the number of measurements. Accuracy can be improved by using more precise instruments and techniques, and by ensuring that the instruments are properly calibrated.
Sources of error can include human error, faulty equipment, environmental factors, and limitations of the measurement technique. It is important to identify and minimize these sources of error to improve the precision and accuracy of the solution.
Precision can be measured by calculating the standard deviation or range of the measurements. Accuracy can be measured by comparing the results to a known or accepted value. Both precision and accuracy can also be evaluated through statistical analysis and confidence intervals.