A hydrate of iron (ii) sulfite is known to contain 44.26% mater. what is the correct name of the hydrate

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22-05-2018
Chemistry

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A hydrate of iron (ii) sulfite is known to contain 44.26% mater. what is the correct name of the hydrate

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kenmyna kenmyna · Answer 1 · 2018-05-31T14:19:57+02:00

the correct name of the hydrate iron (ii) sulfite is iron(ii)sulfite heptahydrate
it is gotten as below

find the % composition of FeSO4 = 100-44.26 =55.74 %

find the mole of FeSO4 and H20
= % composition/molar mass

FeSo4 =55.74/151.9 = 0.367 moles
H2O = 44.26/18 =2.459 moles

find the mole ratio by diving each mole with smallest mole
FeSO4 = 0.367/0.367 = 1
H2O = 2.459/0.367 = 7

therefore the name is iron (ii) sulfite heptahydrate is it has seven water molecules