What is the percent of O in CO2
2 answers:
For this case we have the
It is composed of one atom of carbon and two of oxygen.
The atomic mass of carbon and oxygen, which can be found in a periodic table, are given by:
Then, we find the atomic mass of :
Adding we have:
To find the percentage of oxygen, we divide the atomic mass of the two oxygen atoms between that of
%
Thus, the percentage of oxygen is 72.73%
Answer:
72.73%
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Answer:
Two moles.
Explanation:
Sulphuric (sulfuric) acid is a diprotic acid. When one mole of
molecules dissolve in water, two moles of
ions would be produced.
.
On the other hand, sodium hydroxide is a monoprotic base. When one mole of
formula units dissolve in water, only one mole of hydroxide ions
would be produced.
.
Note that and
react at a one-to-one ratio:
.
As a result, it would take of
to react with the
of
that was released when
of
is dissolved in water. Since one mole of
formula units could produce only one mole of
, it would take
of
formula units to produce that
of
for reacting with
of
.