ankarskogC
2020-10-23
sweererlirumeX
Skilled2020-10-24Added 91 answers
In combustion analysis, the amounts of carbon dioxide and waterproduced are determined by measuring the mass increase in thecarbon dioxide and water absorbers, respectively. Typicallythe absorbers are chemicals that absorb or react with carbondioxide or water. For example, a carbon dioxide absorber maybe NaOH (which reacts with carbon dioxide to form
To determine the empirical formula, calculate the grams of C from
gram
gram
gram
moles
Calculate the moles of H and C by dividing by their respective molecular weights to find:
As the number of moles of O is the smallest, divide mole C, mole Hand mole O by mole O to obtain:
mole C/mole O = 10.96
mole H/mole O = 17.45
mole O/ mole O = 1
So have
As the empirical formula weight is about 331 g/mole and the actualmolecular weight is 331.5 g/mole, the empirical formula of thiscompound is also the molecular formula.
22+64
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