(Original post by UserInvalid)
Yeh doing it, I am going over the book, right now I am on redox chapter, just covering things again, and I am sure by today I will have the book covered and start cracking the past papers tomorow.
(Original post by avatar 10)
Does anyone how how to do this question-
The enthalpy change of neutralization of an acid by an alkali is measured by adding
10.0 cm3 of hydrochloric acid to 10.0 cm3 of sodium hydroxide. 10.0 cm3
pipettes with an accuracy of ±0.04 cm3 are used to measure out both solutions.
The overall percentage error in measuring the total volume of the reaction mixture is.... i keep getting +and -0.8% when its meant to be + and -0.08%
I think because you're measuring the amount in the pipette twice you're twice likely to get the error as +/-0.04 x2=+/-0.08