Use the table to identify the phase and phase changes of the elements under the given conditions. Write the name of the substanc
2 answers:
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Answer : The percent purity of in the original sample is 87.94 %
Explanation :
The given balanced chemical reaction is:
First we have to calculate the mass of Fe.
Molar mass of Fe = 55.8 g/mole
Now we have to calculate the moles of
From the balanced chemical reaction we conclude that,
As, 2 moles of Fe produced from 1 mole of
So, of Fe produced from
mole of
Now we have to calculate the mass of
Molar mass of = 159.69 g/mole
Now we have to calculate the percent purity of in the original sample.
Mass of original sample =
Therefore, the percent purity of in the original sample is 87.94 %
Answer:
See explanation and images attached
Explanation:
There are two compounds that could have molecular formula of C2H6O, they are ethanol and methoxy methane (trivial name: methyl ether). The structures of the two compounds are shown in the image attached as obtained from quora.
The boiling point of methoxymethane is -24.8°C while that of ethanol is about 78.5°C. The reason for the high boiling point of ethanol is the presence of intermolecular hydrogen bonding leading to a stronger intermolecular interaction compared to methoxymethane molecules held together only by very weak dispersion forces.
