2C - Moles Flashcards by Michelle Yick

Q

Triangle for moles, atoms, Avogadro’s constant

A

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Q

Triangle for:

moles, mass, molar mass

A

Mass (m)

Moles (n)

Molar mass (Mr)

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Q

Relationship between molecular formula and empirical formula

A

Molecular formula is always a multiple of the empirical formula

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Q

Name and define 2 types of errors when conduction experiments

A

Procedural = Uncertainties to do with the experimental method

Measurement = Uncertainties to do with measurements

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Q

Equation for percentage error?

A

[(Apparatus error x Number of uses) / Value measured] x 100

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Q

Triangle for:

Moles, concentration, volume?

What unit must volume be in?

A

Moles = Conentration x Volume

mol dm^-3

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