Which best explains why water boils in a pot sitting over fire?
1 answer:
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Answer: The molecular formula is
Explanation:
We are given:
Mass of = 0.1605 g
Mass of = 0.0220 g
mass of = 0.1425 g
Step 1 : convert given masses into moles.
Moles of C =
Moles of H =
Moles of S =
Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.
For C =
For H =
For S =
The ratio of C : H: S= 3: 5: 1
Hence the empirical formula is
The empirical weight of = 3(12)+5(1)+1(32)= 73g.
The molecular weight = 146 g/mole
Now we have to calculate the molecular formula.
The molecular formula will be=