Module 2 Foundations in Chemistry

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

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Front (Question)

The mass of an electron

Back (Answer)

1/1836 the mass of a proton

Front (Question)

Isotopes

Back (Answer)

Atoms of the SAME element with the same number of protons but a DIFFERENT number of neutrons

Front (Question)

Relative Isotopic Mass

Back (Answer)

The mass of an isotope relative to 1/12th the mass of an atom of carbon-12

Front (Question)

Relative Atomic Mass

Back (Answer)

The weighted mean mass of an atom of an element relative to 1/12th of the mass of an atom of carbon-12

Front (Question)

1 mole (mol)

Back (Answer)

The amount of substance containing 6.02 x 10^23 number of particles

Front (Question)

Equation for the amount of substance

Back (Answer)

Moles (n) = mass (m)/Mr (M)

Front (Question)

Number of particles (Av Constant)

Back (Answer)

Number of particles = Na (Avogardro’s constant) x moles

Front (Question)

The empirical formula

Back (Answer)

The simplest whole number ratio of atoms of each element present in a compound

Front (Question)

The complete combustion equation

Back (Answer)

CxHy + O2 —> 1/2yH2O + XCO2

#10

Front (Question)

Molecular formula

Back (Answer)

The actual number of atoms of each element in a molecule

#11

Front (Question)

Stoichiometry

Back (Answer)

Ratios former by the balancing number to determine the number of moles

#12

Front (Question)

Concentration

Back (Answer)

This gives an accurate indication of the amount, in moles, of a solute that is dissolved in a volume of the solvent

#13

Front (Question)

Standard solution

Back (Answer)

Solution of known concentration

#14

Front (Question)

How do you convert between g dm-3 to mol dm-3

Back (Answer)

Divide by the Mr

#15

Front (Question)

Which equation do we use to find the concentration of a solution when the volume contains a dm3 unit

Back (Answer)

Amount (n) = C x V

#16

Front (Question)

State the equation used when calculating the moles of a solution when our volume of solution value is in cm3

Back (Answer)

Amount (n) = C x V/1000

#17

Front (Question)

State what 1cm3 is equal to

Back (Answer)

1ml

#18

Front (Question)

State what 1dm3 is equal to

Back (Answer)

1 litre

#19

Front (Question)

How do we convert between cm3 and dm3

Back (Answer)

Divide by 1000

#20

Front (Question)

Solution

Back (Answer)

In a solution, a solute is dissolved into a solvent

#21

Front (Question)

Concentrated solutions contain…

Back (Answer)

A large amount of solute in 1dm3

#22

Front (Question)

Dilute solutions contain…

Back (Answer)

A small amount of solute in 1dm3

#23

Front (Question)

Formula for atom economy

Back (Answer)

Mr of desired product/Total Mr of all products x 100

#24

Front (Question)

Formula for % yield

Back (Answer)

Actual yield/Theoretical yield x 100