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Its A. because it measures the rate of the decay of the isotope
<span>For a particular redox reaction ClO2– is oxidized to ClO4– and Fe3 is reduced to Fe2 . The balanced redox reaction is expressed as:
</span>
4OH-+ClO2- + 4Fe^3+ ---> ClO4- + 4Fe2+ + 2H2O
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Answer:
0.20 mol's
Explanation:
1.675 L = 1.675 dm^3
moles = V/(conc):
moles = 1.675/(8.5)
moles = 0.1970... --> 0.20