SME
Grade 10 Science
The mole and molar mass
The main lesson, then each kind of problem it solves.
The mole and molar mass
Main lesson
Molar mass and percent composition
Use this for a compound’s molar mass and the percent of its mass from each element.
Grams to moles with a unit factor
Use this for “How many moles are in 22 g of CO₂ (44.01 g/mol)?”
Liters of gas at STP
Use this for “How many moles, grams and molecules are in 11.2 L of O₂ at STP?”
Empirical formula from percents
Use this to find the simplest whole-number formula from the percent of each element.