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Amount Of Substance

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

Card preview (24)

#1
Front (Question)

What unit can amount of substance be measured by

Back (Answer)

Mol

#2
Front (Question)

How many particles does one mole contain

Back (Answer)

6.02 x 10^23

#3
Front (Question)

What is the name given to this specific number of particles

Back (Answer)

Avogadros constant

#4
Front (Question)

Does the n.o of particles in one mole change dep on what the substance is

Back (Answer)

No it doesn’t change for atoms, molecules, electrons, ions etc

#5
Front (Question)

Fill in the gap 1 mole of any substance contains

Back (Answer)

6.02 x 10^23 atoms, ions, electrons, molecule Eg one mol of sodium ions contains 6.02 x 10^23 ions

#6
Front (Question)

Eq for number of particles

Back (Answer)

N.o of particles (atoms, molecules, ions etc) = n.o of mol x avogadros constant

#7
Front (Question)

Finish the sentence 1 mol of any substance has a mass …

Back (Answer)

That’s the same as it’s relative molecular mass (Mr) in grams

#8
Front (Question)

Equation for n.o of moles

Back (Answer)

Mass ———— Mr

#9
Front (Question)

Eq and units for conc

Back (Answer)

Conc = mol / mass ——————— Vol Conc = mol dm^-3 Vol = dm3

#10
Front (Question)

How many cm3 in 1dm3

Back (Answer)

1000cm3 = 1dm3

#11
Front (Question)

Ideal gas equation and units

Back (Answer)

Pv = nRT P = pressure = pascals V = volume = m3 R = gas constant = J mol ^-1 K-1 T = temperature = K/•c

#12
Front (Question)

Vol of one mol of any gas

Back (Answer)

One mol of any gas has a vol of 24dm3 at room temp and pressure

#13
Front (Question)

What is room temp and pressure

Back (Answer)

20 degrees Celsius 101,000 pa

#14
Front (Question)

Mol equation using vol

Back (Answer)

V N = —— 24

#15
Front (Question)

How many dm3 in m3

Back (Answer)

1000dm3 = 1m3 Divide by 1000

#16
Front (Question)

How many cm3 in 1 m3

Back (Answer)

1,000,000 cm3 = 1m3 Divide by 1,000,000

#17
Front (Question)

What is ideal gas constant

Back (Answer)

8.314 J mol -1 K -1

#18
Front (Question)

How to convert from degrees Celsius to kelvin

Back (Answer)

Degrees celcius ——> kelvin + 273

#19
Front (Question)

From kelvin to degrees Celcius

Back (Answer)

K ——> celcius -273

#20
Front (Question)

4 assumptions for ideal gas

Back (Answer)

1) gas molecules r tiny compared to spaces bet them 2) no forces acting bet gas mol 3) gas mol move randomly 4) collisions bet gas mol are elastic

#21
Front (Question)

What do ionic equations only show

Back (Answer)

Reacting particles

#22
Front (Question)

Steps of writing ionic equation

Back (Answer)

1) write full balanced equation 2) rewrite equation into its ions 3) cross out spectator ions on both sides of reaction

#23
Front (Question)

What cannot be broken down into ions

Back (Answer)

Gases and solids

#24
Front (Question)

Phenolphthalein colour changes

Back (Answer)

Pink in alkali Colourless in acid