During a chemical reaction a student records the following mass values using the same…
PHYSICS · Multi-part · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
During a chemical reaction a student records the following mass values using the same electronic balance:
Initial mass of reactants: 150.0g(±0.2g)
Final mass of products: 149.6g(±0.2g)
(i) Find the mass lost during the reaction.
(ii) Determine the absolute uncertainty associated with this mass loss.
(iii) Calculate the percentage uncertainty in the mass loss, giving your answer to two significant figures.