How do chemical reactions impact our local water supply ?
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What is Chemical Reaction?
A chemical reaction occurs when a certain group of molecules converts into another form without affecting their nuclei; only the transfer or sharing of electrons and the building and breaking of bonds occur.
Main Content
Known :
Mass of
Mass of
Calculations :
First, balance the given chemical equation by place 2,3 and 5 as the coefficients of Respectively
We multiply the given mass of by the reciprocal of its molar mass to get the number of moles. The molar mass of
Them, we multiply the ratio between . based on the chemical equation, the molar ratio 1 mol
.
For water, we again multiply the given mass by the reciprocal of its molar mass to get the number if moles. The molar mass of
is 18.02g/mol
Then, we multiply the molar ratio between H2O and HIOs. Based on the chemical equation, the molar ratio is 1 mol
We can see that the limiting reactant is since the given mass of
forms lesser product than water does. Thus , the maximum number of moles of
formed is 1.36 mol
. We now multiply the molar mas of
to the calculated number of moles. The molar mass of
is 175.91 g/mol.
Mass of formed (Max)
We multiply the number of moles of by the molar ratio between
and
which is
we get the number of moles of
reacted. Then, we multiply the molar mass of water.
Mass of reacted
Mass of reacted = 73.6g
We subtract the mass of reacted from the given mass of
.
Mass of = 118.5 - 73.6g =
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