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Hexane is a liquid, and the number of molecules can only be a gas under the standard condition, and the alkane with a carbon number of 4 is in a gaseous state, and the alkane with a > 4 is in a liquid state.
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n-hexane. English name is n-hexane
Molecular formula CH9(CH2)4CH3
Molecular weight traits: colorless transparent liquid, volatile. Specific gravity, boiling point, melting point -95, refractive index; Flash point -9°F. Soluble in alcohols, ketones and ethers, insoluble in water.
This is the description of hexane.
If it's a gas, that's true.
But hexane is a liquid, and this statement is wrong.
Alkanes, butane and below are gases, and the above are basically liquids, at room temperature and pressure.
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Analysis] The above results are utilized by formulas.
n=v vm.
There needs to be clarity here.
vm= must be in standard condition and the substance must be a gas in order to be used.
In this example, hexane is liquid under standard conditions, so the calculation is incorrect.
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Carbon is a liquid, hexane is a liquid, so it's not true, what you're saying only applies to gases.
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Hexane is liquid under standard conditions and cannot be calculated by gas algorithm, so it is wrong.
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Basically, no problem (n means Avogadro's constant a, I don't understand what you mean), if you insist on saying that it is not right, the ideal gas volume is, it is not.
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The volume of gas in the standard state is that the standard condition of hexane is not a gas, and the amount of matter is not, so the above error is a mistake;
So the answer is: false
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Methane is CH4
A puddle of ulnar skin c has a trap difference of 6 protons.
There is 1 h.
So there are 10 of them.
Therefore, the amount of methane containing the protons of the trapped ashwagandha is 1mol.
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In the school of question, it is mentioned that the amount of methane is mol, and the methane molecule contains n hydrogen atoms. Na is Avogadro's constant and is about x 10 23 mol -1.
Mole is a unit that describes the quantity of a substance and indicates the number of basic units contained in a substance. For compounds such as methane, the amount of matter is expressed in moles.
The amount of the substance given in the question is mol, which means that under the given conditions, there are moles of methane available.
According to the problem description, the methane molecule contains na hydrogen atoms. In 1 mole of methane, the number of hydrogen atoms is equal to Na. So in moles of methane, the number of hydrogen atoms is Na.
Therefore, in a mole of methane containing n hydrogen atoms, the number of hydrogen withered atoms is na.
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The chemical formula of methane is CH, which means that each methane molecule contains 4 hydrogen atoms, which means that each mole of methane contains 4 moles of hydrogen atoms. Then the amount of methane containing na (1 mole) hydrogen atom is 1 4 = Moyuanlu.
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Methane chemical formula: CH4
1 mol of methane spine spine fluid molecule field mill contains 1molc, 4molh, 1molc contains 6na protons, and 4molh contains 4na protons.
So the total orator contains 10na protons.
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Why is Suiyuan a small Jin clan fiercer than 2na?
The chemical formula of ethyl bridge alkane is C H, 1mol C h contains 2mol C atoms, and the number of carbon atoms of 2molc atoms is 2Na.
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Methane. CH4) containing methane molecules (pcs, containing carbon atoms (, containing hydrogen atoms.
2na).
1 CH4 contains 1 C atom and 4 H atoms, the C atom is 2mol.
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Wrong. In standard condition, methane is contained in the combustion.
Hydrogen original lease virtual son.
The number is 2na, and the hydrogen contained in methane is the original finger under standard conditions.
The amount of matter. for 2mol
Before derivation, you need to know that n=m m; The amount of a gaseous substance at standard atmospheric pressure n (gas) = v ; The formula for the quantity concentration of a substance is c = n (solute) v (solution); Density of water Water = 1000g cm 3 = 1000g ml >>>More
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