Pre-Laboratory Questions 1. Clearly explain the difference between accuracy and precision when making measurements. 2. Why should any measurement data, along with the identifying information about a sample (solid block, solution, metal rod, etc.) be recorded immediately in your laboratory manual and not on a scrap of paper or recorded later when all measurements have been made? 3. If you place a stone on a balance to determine its mass, would you consider your measurement to be accurate? Explain your answer. 4. You have an object that you want to identify. Questions a. > c. are designed to help you achieve this objective. The object was carefully weighed by five different individuals on a multiple-beam balance. The balance was zeroed between each measurement. The masses were 11.36 g, 11.37 g, 11.40 g, 11.38 g and 11.39 grams. Show all your calculations in answering the questions. a. Calculate the average value for the mass of that object based on these measurements. Show your work and underline your final answer. b. Calculate the standard deviation for this set of measurements listed in question 4a. Show all your work and underline your final