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Svetllana [295]
2 years ago
14

Cho 700ml dung dịch NaOH 0.1M vào 100ml dung dịch AlCl3 0.2M. Tính khối lượng kết tủa sau phản ứng

Chemistry
1 answer:
Licemer1 [7]2 years ago
8 0
English ? i can’t understand
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What are the empirical formulas of a) ethylene glycol, a radiator antifreeze, molecular formula C2H6O2 b) peroxodisulfuric acid,
Temka [501]
<h2>The answers are CH_3O and HSO_4</h2>

Explanation:

Given -

a) The molecular formula of ethylene glycol -

    C_2H_6O_2

∴ The empirical formula of ethylene glycol will be -

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Given -

b) The molecular formula of per-oxo-disulfuric acid (a compound used in bleaching agents) -

    H_2S_2O_8

∴ The empirical formula of per-oxo-disulfuric acid will be -

    HSO_4

Hence, the answers are CH_3O and HSO_4.

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3 years ago
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7 0
2 years ago
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It is common to mix polar solvents (e.g., acetone) with non-polar solvents (e.g., hexane) to obtain an eluting solvent of interm
hammer [34]

Answer:

No, it is not appropriate to mix water and DMSO

Explanation:

We have to realize that DMSO is a highly polar solvent and water is a highly polar solvent. The question explicitly says that our target is to produce a solvent of<u><em> intermediate polarity</em></u>.

We can only do this by mixing a polar and a nonpolar solvent. We have been given the example of the mixture of acetone/hexane which is quite a perfect mixture.

Thus, it is inappropriate to mix DMSO and water.

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Explanation:

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