![]() When some salt is added to the beaker, the combined mass is 36.176 grams. An empty beaker has a measured mass of 29.456 g.What are the two types of balances you will use to measure mass?.In Part C of this lab, you will measure the mass of several different items, in grams (g).Which of these is the more precise measurement, and why? Consider the following two volume measurements: 57.7 mL and 57.68 mL.What two measuring instruments will you use to measure the water volume?.In Part B of this lab, you will measure the volume of a sample of water, in milliliters (mL).What is the formula for the area of a circle?.Calculate the area of this rectangle (show work), reporting your answer to the correct number of significant figures. Using a ruler, you measure the length of a rectangle to be 12.75 cm and the width to be 3.64 cm.In Part A of this lab, you will measure the dimensions (length, width, diameter) of several geometric shapes.Pre-laboratory Assignment: Introducing Measurements in the Laboratory T he unknown sample and the capillary tube (together) should be disposed of in the labeled waste container provided when you are finished. ![]() Also note that melting points depend on the purity of the solid. The melting points given in the table represent the lowest temperature in that range, where liquid formation is first observed. Please note that organic solids actually melt over a range of temperatures. * This melting point data was obtained from the NIST Standard Reference Database Number 69 ( ). Then evaluate the accuracy in your measurement by calculating your percent error. Identify your solid by comparing your experimental melting point with the true melting points supplied.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |