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C2

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Total cards: 24•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Define relative atomic mass?

Back (Answer)

The mean mass of an atom compared to 1/12 the mass of a Carbon-12 atom

#2
Front (Question)

What is the symbol for Relative atomic mass?

Back (Answer)

Ar

#3
Front (Question)

Define relative formula mass

Back (Answer)

The mean mass of a unit of substance compared to 1/12 the mass of a Carbon -12 atom

#4
Front (Question)

What is the symbol for relative formula mass?

Back (Answer)

Mr

#5
Front (Question)

Define empirical formula

Back (Answer)

Shows the simplest whole number ratio of the atoms of each element in a compound

#6
Front (Question)

What does pure mean?

Back (Answer)

Consists of just one element or compound

#7
Front (Question)

How does purity affect melting point? (Two ways)

Back (Answer)

Melting point is reduced and is over a range of temperatures

#8
Front (Question)

What is a solute?

Back (Answer)

A substance (solid) that dissolves

#9
Front (Question)

What is a solvent?

Back (Answer)

The substance which does the dissolving (liquid)

#10
Front (Question)

What does soluble mean?

Back (Answer)

A substance can dissolve in a particular solvent

#11
Front (Question)

What is the filtrate?

Back (Answer)

The substance that passes through the filter paper

#12
Front (Question)

What is the residue in filtration?

Back (Answer)

The substance that stays on the filter paper

#13
Front (Question)

What does saturated mean?

Back (Answer)

No more solute can dissolve at that temperature

#14
Front (Question)

What does a condenser do?

Back (Answer)

Cools a gas back to a liquid state

#15
Front (Question)

What does fractional distillation do?

Back (Answer)

Separates two or more substances from a mixture in the liquid state - they have to have different boiling points

#16
Front (Question)

What is the stationary phase?

Back (Answer)

In chromatography the part that does not move - the paper or the plate

#17
Front (Question)

What is the mobile phase?

Back (Answer)

In chromatography the part that moves - the solvent

#18
Front (Question)

What is the stationary phase in gas chromatography?

Back (Answer)

Silica or alumina powder

#19
Front (Question)

What is the mobile phase in gas chromatography?

Back (Answer)

An unreactive carrier has such as nitrogen

#20
Front (Question)

How do you calculate the Rf value?

Back (Answer)

Distance travelled by substance divided by distance travelled by solvent

#21
Front (Question)

How would you separate a mixture of insoluble and soluble substances?

Back (Answer)

Dissolving followed by filtration

#22
Front (Question)

How would you obtain a solute from a solution

Back (Answer)

Crystallisation

#23
Front (Question)

How would you obtain a solvent from a solution

Back (Answer)

Simple distillation

#24
Front (Question)

How would you separate coloured soluble substances?

Back (Answer)

Paper or thin-layer chromatography