Raekwon3232
15.02.2022 •
Chemistry
Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 44. g of hexane is mixed with 105. g of oxygen. Calculate the minimum mass of hexane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
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Ответ:
27 amu
Explanation:
If X-28= 75%
Then X-24 = 100-75= 25%
Then
(28 × 0.75) + (24× 0.25) = 21 + 6= 27 amu
NB
The sum of all the relative abundances of isotopes must be 100%.
The sum of the products of isotope abundance and mass for each isotope gives the relative atomic mass for the element