CHEM 1122 Study Guide - Fall 2018, Comprehensive Midterm Notes - Stoichiometry, Page 3, Ionic Greek

• School: UConn
• Department: Chemistry
• Course: CHEM 1122
• Professor: Kiet Tran

Document Summary

Lecture 7 notes: stoichiometry (molar mass and chemical composition, atomic structure did not get to. Will be covered on 09/14/18 (time restraint: balancing equations did not get to. Will be covered on 09/14/18 (time restraint: isotopes did not get to. Cheerios (contain iron) are blended up in water in a cup while a magnet is moved around the outside of the cup. This magnet attracts the natural iron contained in the cheerios. Ex to find moles and particles: moles: 1 mol of si / 28g of si = 0. 19. 9. 7 x 10^22: particles: 6. 022 x 10^23/ 1 mol of si = 1. 1 x 20^23. Moles: 1 mol of p / 31g of p = 0. 87: particles: 6. 022 x 10^23 / 1 mol of p = 5. 24 x 10^22. Moles: 1 mol of alcl / 62. 5g = 0. 16: particles: 6. 022 x 10^23 / 1 mol of alcl = 9. 7 x 10^22.