1 / 6

Mole Concept Model

This guide explores the application of the mole concept to estimate the quantity of office supplies based on their mass. It introduces a linear relationship for this estimation, demonstrating how it parallels our understanding of how small atoms are. By linking a mole of a common object, like marshmallows, to the mole of atoms, you will grasp their scale in a tangible way. Additionally, it discusses precision and % error, examining how well our predictions align with actual values and what it signifies about accuracy in scientific measurements.

vesta
Download Presentation

Mole Concept Model

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mole Concept Model Estimating # of Office SUpplies

  2. Goals: • To use a linear relationship to estimate the # of a certain type of office supply when you know its mass. • To apply this thinking to the mole concept • See how small atoms are by comparing a mole of a common everyday object to a mole of atoms on the periodic table

  3. Introduction

  4. Precision & % Error • How well does your line represent the equation? • What value tells you this? • Precision or Accuracy? • Why isn’t your number exact? • What value tells you how off you were? • Precision or accuracy? • What does a + % error mean? • What does a - % error mean?

  5. Application • We do not use a line of best fit to convert from mass of an element to number of particles. • We use “the mole” because we can’t go directly from mass to number…. • Why can’t we go directly from mass to number?

  6. So then how big are atoms? • Mass of giant marshmallows: • This would be closest to a mole (6.02X1023 atoms) of: _____ • What would a mole of marshmallows weigh? • What planetary body is a mole of marshmallows closest to? • Jupiter 1.9 X 1027 kg • Earth 5.97 X 1024 kg • Moon 7.34 X 1022 kg

More Related