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DaniilM [7]
4 years ago
6

Which compound(s will not form a yellow precipitate when treated with excess iodine in the presence of naoh?

Chemistry
1 answer:
Novosadov [1.4K]4 years ago
8 0
For example:

5Cl₂ + I₂ + 12NaOH = 10NaCl + 2NaIO₃ + 6H₂O

Na₂S₂O₃ + 4I₂ + 10NaOH = 8NaI + 2Na₂SO₄ + 5H₂O
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Chlorine is used to disinfect swimming pools. the accepted concentration for this purpose is 1.00 ppm chlorine, or 1.00 g of chl
frez [133]

The accepted concentration of chlorine is 1.00 ppm that is 1 gram of chlorine per million of water.

The volume of water is 2.29\times 10^{4} gal.

Since, 1 gal= 3785.41 mL

Thus, 2.29\times 10^{4} gal=2.29\times 10^{4}\times 3785.41 mL=8.66\times 10^{7}mL

Density of water is 1 g/mL thus, mass of water will be 8.66\times 10^{7}g.

Since, 1 grams of chlorine →10^{6} grams of water.

1 g of water →10^{-6} g of chlorine and,

8.66\times 10^{7}g of water →86.6 g of chlorine

Since, the solution is 9% chlorine by mass, the volume of solution will be:

V=\frac{100}{9}\times 86.6 mL=9.62\times 10^{2} mL

Thus, volume of chlorine solution is 9.62\times 10^{2} mL.

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3 years ago
How were weapons and utensils fashioned during the Stone Age
Alenkasestr [34]
They were created with stone and wood and sometimes even bones, I hope this helped!
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4 years ago
7. A small stone added to boiling liquids to make them boil more evenly without sudden violent releases of
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Answer:

A boiling chip, boiling stone, porous bit or anti-bumping granule is a tiny, unevenly shaped piece of substance added to liquids to make them boil more calmly.

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1.A 2.C 3.B

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