Calculate the molecular formula of a compound which contains 20 ca and 80 br if the molecular mass is 200 g
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Answered by
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The molecular formula is \bold{C a B r_{2}}
Explanation:
Given:
A compound as molecular formula of 20% of Ca and 80% of Br.
To find:
Molecular weight of compound when it is 200.
Let us assume the mixture formed to be as 100.
Now let us find the mole of Ca and Br separately.
Mole of Ca
=20/40
=1/2
Mole of Br
=80/80
=1
The ratio between Ca and Br is given by 1:2 that is C a_{1} B r_{2}
Therefore empirical formula = C a B r_{2}
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Explanation:
atoms may also be held together by chemical bonds with no presence of any definable molecule, nor any of the regularity of repeating units that characterizes crystals.
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