Law of Mass Conservation

Objectives:

To understand that number of atoms therefore mass is conserved during a chemical reaction

To use balanced chemical equations for chemical calculations regarding mole concept

To use law of conservation of mass and stoichiometric calculations to analyse a mixture by purification

Curriculum alignments:

NGSS

HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass are conserved during a chemical reaction.

IB-DP

Structure 1.4—Counting particles by mass: The mole

3.7 Solutions and Mixtures

4.5 Stoichiometry

Cambridge GCSE

Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations

MEB

10.1 Basic laws of chemistry and chemical calculations