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3 years ago

Which process in the light-dependent reactions results in the release of hydrogen ions, electrons, and oxygen?

Chemistry

2 answers:

Otrada [13]3 years ago

8 0

Answer:

Water spit occurs during release of hydrogen ions,electrons and oxygen.

Explanation:

During photosynthesis,water is required to be occured.The light activated the chlorophyll during light reactions,This activated chlorophyll molecule will results in splitting of water molecules,as a result water splits into hydrogen,oxygen and electrons.This process is known as photolysis.Hence water splitting occurs during light dependent reactions in release of hydrogen ions,electrons and oxygen.

tino4ka555 [31]3 years ago

6 0

The answer is actually Water Splitting! Hope this works:D

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Explanation:

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$ .....(1)

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For $_{77}^{191}\textrm{Ir}$ isotope:

Mass of $_{77}^{191}\textrm{Ir}$ isotope = 190.9606 amu

Fractional abundance of $_{77}^{191}\textrm{Ir}$ isotope = x

For $_{77}^{193}\textrm{Ir}$ isotope:

Mass of $_{77}^{193}\textrm{Ir}$ isotope = 192.9629 amu

Fractional abundance of $_{77}^{193}\textrm{Ir}$ isotope = 1 - x

Average atomic mass of iridium = 192.22 amu

Putting values in equation 1, we get:

$192.22=[(190.9606\times x)+(192.9629\times (1-x))]\\\\x=0.3710$

Percentage abundance of $_{77}^{191}\textrm{Ir}$ isotope = $0.3710\times 100=37.10\%$

Percentage abundance of $_{77}^{193}\textrm{Ir}$ isotope = $(1-0.3710)=0.6290\times 100=62.90\%$

Hence, the percentage abundance of $_{77}^{191}\textrm{Ir}$ and $_{77}^{193}\textrm{Ir}$ isotopes are 37.10% and 62.90% respectively.

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