Question

formula
an
Determine the teum
Emerical
of
oxide af man
euhich has 699956 enon and
CAT man
30 .1 % oxygen
by
fe = 55.8
55.8 Sou amu
0-16.000 multo
mass​

Answer 1

Answer:

oxide af man

euhich has 699956 enon and

CAT man

30 .1 % oxygen

by

fe = 55.8

55.8 Sou amu

0-16.000 multo

mass

Answer 2

Explanation:

Answer

The iron oxide has 69.9% iron and 30.1% dioxygen by mass.

Thus, 100 g of iron oxide contains 69.9 g iron and 30.1 g dioxygen.

The number of moles of iron present in 100 g of iron oxide are

55.8

69.9

=1.25.

The number of moles of dioxygen present in 100 g of iron oxide are

32

30.1

=0.94.

The ratio of the number of oxygen atoms to the number of carbon atoms present in one formula unit of iron oxide is

1.25

2×0.94

=1.5:1=3:2.

Hence, the formula of the iron oxide is Fe

2

O

3

.

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