#chemistry #empiricalformula #moleconcept
Pg:- 105,106
There is an efficient way of finding the Empirical formula of a compound and that is by making a table.
Here let's find the empirical formula of Phosphorus pentoxide:
P O
% by mass: 44% . 100 - 44 = 56%
Mass in 100g: 44g . 56g
Molar mass: 31g/mol . 16g/mol
no of moles: 1.4 mol . 3.5
Simplest ratio: 2 . 5
Formula: P2O5
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add tags sree
write few more examples for finding empirical formula creating tables.