Some Basic Concepts of Chemistry — Class 11 CBSE Chemistry revision notes
A 4-page visual revision sheet for Some Basic Concepts of Chemistry, written for Class 11 CBSE Chemistry. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Some Basic Concepts of Chemistry sheet covers
- Particles
- Moles
- Mass
- Laws of chemical combination
- Dalton's atomic theory, briefly
- Atomic, molecular, formula mass
- 1 amu, one-twelfth the mass of a ^12C atom
- molecular mass = sum of atomic masses of every atom in the molecule
- formula mass, used for ionic solids, which have no single discrete molecule
- The mole, three ways to count
- from a particle count
- from a mass
- from a gas volume, at STP only
- Percentage composition
- Empirical formula from % composition
- Molecular formula from empirical
- multiplier, n = molecular mass ÷ empirical formula mass
- molecular formula = n × empirical formula: glucose, worked
- Empirical formula vs molecular formula
- Empirical formula
- Molecular formula
- Reading a balanced equation
- Stoichiometry
- A stoichiometric calculation, step by step
- Limiting reagent
- Finding the limiting reagent
- Concentration terms
- mass percentage (% w/w)
- mole fraction
- molarity, mol solute per litre of SOLUTION
- molality, mol solute per kg of SOLVENT
- Symbols
- Significant figures: counting rules
- Significant figures in a calculation
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Chemistry chapter by chapter against your real exam dates and free hours, and when the plan reaches Some Basic Concepts of Chemistry the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.