PSYC 102 Lecture Notes - Lecture 1: Graduated Cylinder, Mcgraw-Hill Education, Significant Figures
Document Summary
The density of a substance is an important intrinsic property which can be easily determined from simple measurements, and can be used to identify an unknown substance. Appreciate the different methods for determining volumes of objects. Understand the relationship between volume measurements and calculated densities for various objects. Appreciate the effect of rounding on calculated results. Report computed values to the appropriate number of significant figures. Identify the accuracy and precision of a calculated value. General chemistry , by denniston, topping, and caret (mcgraw hill, 2008) pp. Prerequisites geometric volumes (sphere, cube), accuracy vs. precision, significant figures, density. Volumes of solid objects can be determined in several ways. For geometric shapes, volumes can be calculated using appropriate equations and dimensions. Alternatively, volumes can be determined by observing the volume of water displaced by the object in a graduated cylinder. Consider the data for two solid copper samples presented in the tables below.
