Amounts in Moles

Explain the critical relationship between the measurable mass of a given substance and its corresponding chemical amount measured in moles.

Recall and correctly use the formal definition of the mole, recognizing its standard unit symbol.

Recall and use the Avogadro constant definition in standard form.

Understand that the mass of one mole of a substance in grams is numerically equivalent to its relative formula mass.

Recognize that one mole of any substance contains an identical number of stated particles as one mole of any other substance.

State the numerical value of the Avogadro constant as 6.02 x 10^23 particles per mole.

Calculate the chemical amount in moles from a given mass of a substance using its relative formula mass, and perform the inverse calculation, utilizing decimal expressions and correct units.

Manipulate mathematical equations confidently by changing the subject of the equation.

Provide calculated answers to an appropriate and justified number of significant figures.

Perform accurate calculations using numbers written in standard form, particularly when applying the Avogadro constant.

Understand and apply standard mathematical symbols relating to equality and proportionality.