Tag: atoms and molecules

atomic weight and molecular weight

Tests knowledge of molecular formulas, chemical notation, and valency relationships including writing correct formulas, identifying incorrect formulas, predicting formulas from valency, and understanding what formulas represent.

Calculations involving percentage composition of elements in compounds, determination of empirical formulas from composition data, and conversion between empirical and molecular formulas

Comprehensive quiz covering Dalton's atomic theory, its postulates, limitations, and basic atomic concepts

gas laws and mole concept

atoms and molecules

Dalton's atomic theory including postulates, merits, limitations, and historical context for class-XI chemistry students

relative formula mass

molecular mass

Questions about the Law of Definite Proportions (Law of Constant Composition), which states that a chemical compound always contains exactly the same proportion of elements by mass.