E MISSW
water
+
8
molecules have a small
What is water of crystallisation ? H H + charge (8) on the hydrogen
All solid salts consist of a lattice of
atoms and a small-charge (8
on the
oxygen atoms
positive and negative ions
Ori
In
are
some
also
of these
incorporated into
salts , water
the
molecules
lattice M
↳ the
·
if a
salts
salt
are
doesn't
hydrated
contain water then it this H H8t
means that
is an hydrous they are attracted to
the ions in the
lattice and are held
Worked Example : Oge im place
Heating hydrated magnesium sulphate , MgS0x . XHz0 ,
in a crucible forms anhydrous
magnesium Slufate MgSOp , . Use the experimental data below to find the value of X
and write the formula of the hydrated salt
.
mass crucible 42 0009
of empty : .
mass of crucible +
MgSOn .
XHc0 : 45 .
210g
mass of crucible +
MgSO4 : 43 .
5679
1) Work out what mass of MgSO4 .
XH ,O and MgSO4 you have
Mass of Mg
water
+
8
molecules have a small
What is water of crystallisation ? H H + charge (8) on the hydrogen
All solid salts consist of a lattice of
atoms and a small-charge (8
on the
oxygen atoms
positive and negative ions
Ori
In
are
some
also
of these
incorporated into
salts , water
the
molecules
lattice M
↳ the
·
if a
salts
salt
are
doesn't
hydrated
contain water then it this H H8t
means that
is an hydrous they are attracted to
the ions in the
lattice and are held
Worked Example : Oge im place
Heating hydrated magnesium sulphate , MgS0x . XHz0 ,
in a crucible forms anhydrous
magnesium Slufate MgSOp , . Use the experimental data below to find the value of X
and write the formula of the hydrated salt
.
mass crucible 42 0009
of empty : .
mass of crucible +
MgSOn .
XHc0 : 45 .
210g
mass of crucible +
MgSO4 : 43 .
5679
1) Work out what mass of MgSO4 .
XH ,O and MgSO4 you have
Mass of Mg
