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A chemist adds 4.0 mL of an ether solution to excess… | StemPy Lab
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A chemist adds 4.0 mL of an ether solution to excess acidified iodide. The iodine formed needs 2.0 mL of 0.010 mol/L thiosulphate. Each peroxide gives one I₂ and each I₂ takes two thiosulphate ions. How many micromoles of peroxide were in the sample?
Chemistry
Hard
High School (11–12)
Organic Compounds with Functional Groups › Alcohols, Phenols and Ethers
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StemPy Lab
A chemist adds
4.0
mL
4.0\ \text{mL}
4.0
mL
of an ether solution to excess acidified iodide. The iodine formed needs
2.0
mL
2.0\ \text{mL}
2.0
mL
of
0.010
mol/L
0.010\ \text{mol/L}
0.010
mol/L
thiosulphate. Each peroxide gives one
I
2
\text{I}_2
I
2
and each
I
2
\text{I}_2
I
2
takes two thiosulphate ions. How many micromoles of peroxide were in the sample?
10
40
5
20
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