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About 1.1% of naturally occurring carbon is carbon-13.
Typically, wine contains around 12-15% ethanol by volume.
The percent composition of Carbon in heptane (C7H16) is 84 percent. This can be calculated by dividing the total number of Carbon atoms in the molecule by the total number of atoms and then multiplying by 100 to get the percentage.
To convert from mol percent to weight percent, we need to know the molecular weights of the substances involved. Without this information, we cannot accurately convert 0.0141 mol percent to weight percent.
2 percent of 14.00 per gram is 0.28.