Comment on the absolute error (Observed volume-Actual volume) and on the % error
ID: 836471 • Letter: C
Question
Comment on the absolute error (Observed volume-Actual volume) and on the % error calculated for each addition. Using the above observation in step 8, EXPLAIN how you can identify the limiting reagent BaCl2 or Na2SO4) Using your results, calculate the mass percent of each BaCl2 2H2O and NaCl found in your initial mixture. What is your limiting reagent? Calculate the # of moles of your limiting reagent form the mass of your precipitate. Calculate the # of moles and the mass of each reactant based on the # of moles of the limitingExplanation / Answer
percentage error : eyes where not at the same level or the members
possible evopration of water
accuracy of the equipment used these are all factors thad did influence the actual reading caused difference in the fixed observed value
the limiting is the reactant if added to the remaining of the solution will cause the formation of precitipitate . when adding bacl2 and Na2So4 to bottle test lus what we're looking for the formation of precitipitate of creation of white cloud . this is produced when adding Bacl2 and the solution remains colourless when adding Na2so4 thus bacl2 is the limiting reagent