Using Moles
Review the essentials and check your understanding after your teacher’s explanation.
The mole as a counting unit用摩尔计量粒子
Connect a familiar mass measurement to a very large particle count.
Complete this core task when your teacher assigns the topic. Use the short recall cards before class.按老师指定的知识点完成网页预习，周内用提示卡回忆；不是整章预习。
Choose a topic
Moles, mass and particles
Convert between mass, amount in moles and number of particles.
Reacting moles and limiting reactants
Use mole ratios to calculate product mass, limiting reactants and yield.
Gas volumes at room conditions
Use molar gas volume and gas ratios, including a purity calculation.
Concentration and titration calculations
Convert concentration units and calculate unknown concentration from titration data.
Empirical and molecular formulae
Deduce empirical formulae from composition and molecular formulae from relative molecular mass.
Printable worksheets
Guided Worksheet
5 lessons × 40 minutes · Two printable pages per lesson, with worked examples and homework.
Download DOCX ↓Printable hint cards
Use a card when you need a starting step, then return to the question. Chapter 6 cards are on pages 8–9 of the collection. Print the relevant pages and cut out the cards you need.
Download hint cards DOCX ↓