Answer:
Oxygen.
Explanation:
Hello,
Yeast fermentation in the food industry must be carried out under anaerobic conditions as long as when oxygen is present respiration occurs rather than fermentation.
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CO2 goes on the bottom and O2 on the top.
Answer:
20.19 amu.
Explanation:
From the question given above, the following data were obtained:
Isotope A:
Abundance (A%) = 90.5%
Mass of A = 20 amu
Isotope B:
Abundance (B%) = 9.5%
Mass of B = 22 amu
Average atomic mass =..?
The average atomic mass of the element can be obtained as follow:
Average atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100]
Average atomic mass = [(20 × 90.5)/100] + [(22 × 9.5)/100]
Average atomic mass = 18.1 + 2.09
Average atomic mass = 20.19 amu
Therefore, the average atomic mass of the element is 20.19 amu