Open Access. Powered by Scholars. Published by Universities.®

Education Commons

Open Access. Powered by Scholars. Published by Universities.®

Series

MS Powerpoint

Science and Mathematics Education

Arsenic

Publication Year

Articles 1 - 2 of 2

Full-Text Articles in Education

Concentration, Amount And Counting By Weighing, Julian Tyson Jan 2018

Concentration, Amount And Counting By Weighing, Julian Tyson

Science and Engineering Saturday Seminars

Concentration, Amount and Counting by Weighing

UMass Amherst STEM Ed Institute Saturday Workshop 2/3/2018

Julian Tyson, Professor Emeritus, Department of Chemistry. Tyson@chem.umass.edu

Session 1. Introductions.

Ice-breaker: The elementarity contest.

Setting the scene: “How much arsenic do we eat?” Why do we want to know? The Consumer Reports articles (Nov 2012 and Nov 2014)

Dealing with really big and really small numbers.

Session 2. Amount, concentration

Solids, liquids and gases. The “parts per” concept.

Session 3. Counting by weighing

The count equation. Rice grains (the bottle content problem), atoms and molecules.. Chemical formulas and balanced chemical ...


How Much Arsenic Do We Eat?, Julian Tyson Jan 2013

How Much Arsenic Do We Eat?, Julian Tyson

Science and Engineering Saturday Seminars

No abstract provided.