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Leto [7]
3 years ago
7

hỗn hợp E gồm 6 este có cùng CTPT C8H8O2 và đều chứa vòng benzen. Cho 68g phản ứng tối đa với V ml dd NaOH 1M đun nống, thu được

15g muối và 77,4g hh ancol Y. Giá trị của V là?
Chemistry
1 answer:
Lubov Fominskaja [6]3 years ago
7 0

Explanation:

just a few days ago and I have a

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Sliva [168]

Answer:

B

Explanation:

3 0
3 years ago
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Is NaF an acid, base or salt?
Ymorist [56]

Answer:

NaF is a salt

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The given potentials are observed for a calomel electrode: E ° = 0.268 V and E ( saturated KCl ) = 0.241 V . Use this informatio
Anvisha [2.4K]

Answer: The E for Silver-silver Chloride electrode = 0.287 V

Explanation:

Silver/Silver Chloride (Ag/AgCl) with a value for E° that is actually +0.222 V or approximately 0.23 V has the actual potential of the half-cell prepared in this way as +0.197 V vs SHE, (Standard Hydrogen Electrode) which arises because in addition to KCl, there is the contribuion of AgCl to the chloride activity, which isn't exactly unity.

Therefore, the E for the Ag/AgCl electrode would approximately equal 0.287 V

4 0
3 years ago
In chemical reactions, there is a conservation of(1) energy, volume and mass
Lubov Fominskaja [6]
<span>Answer: option (3) energy, charge and mass.
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<span>Explanation:
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<span>1) The conservation of energy is a universal principle: energy is neither created nor destroyed. This is the first law of thermodynamic.
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<span>2) Mass conservation is another universal principle: mass is neither created nor destroyed. This principle is the base of the stochiometry: thas mass of the reactans equal the mass of the products. Another consequence, since the atoms are not transformed in the chemical reactions, is that the number of each kind of atoms in the reactants equal the number of the same kind of atoms in the products.
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<span>3) The third principle is the conservation of charge. Also, charge is neither created nor destroyed. The electrons gained/lost by one species are lost/gained by other species. So, when one atom or molecule is oxidized other is reduced.</span>
4 0
4 years ago
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The crust and uppermost mantle make up the rigid outer layer of Earth, which is called the _____.
Andru [333]

Here is your answer:


The crust and uppermost mantle make up the rigid outer layer of Earth, which is called the "lithosphere." The crust and the mantle makes up the lithosphere. The lithosphere is rigid outer part of the earth which contains the upper mantle and the crust.


Hope this helps!


<em>~Nonportrit</em>

6 0
3 years ago
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