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5.1 Moles II

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Total cards: 9•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (9)

#1
Front (Question)

how to carry out an acid-alkali tritiation

Back (Answer)

• fill​ ​burette​ ​to​ ​100cm3​ ​​with​ ​acid​ ​with​ ​the​ ​ • use pipette to add 25cm3​ of alkali into a conical flask • add a few drops of a suitable indicator to the conical flask • add​ ​acid​ ​from​ ​burette​ ​to​ ​alkali​ ​until​ ​end-point​ ​is​ ​reached​ • titre (volume of acid needed to exactly neutralise the acid) is the difference between​ ​the​ ​first​ ​(100cm3​ )​ ​​and​ ​second​ ​readings​ ​on​ ​the​ ​burette) • repeat ​the​ ​experiment​ ​

#2
Front (Question)

concentration of solution formula

Back (Answer)

mass of solute / volume

#3
Front (Question)

mass =

Back (Answer)

concentration x vol

#4
Front (Question)

24dm^3 to cm^3

Back (Answer)

x1000

#5
Front (Question)

always convert

Back (Answer)

cm to dm

#6
Front (Question)

volume =

Back (Answer)

moles x 24

#7
Front (Question)

moles = (g)

Back (Answer)

vol / 24

#8
Front (Question)

how to calculate empirical formula

Back (Answer)

• lay out table with elements • find mass, RAM, mol, ratio • use ratio to find empirical formula

#9
Front (Question)

determine formula of metal oxide by combustion or reduction

Back (Answer)

• weigh pure magnesium • heat magnesium to burning in crucible to form magnesium oxide (reacts with oxygen in air) • weight mass of MgO mass oxygen = mass MgO - mass O