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low cost wholesale jewelry The mass of Moore Quality
The substances of the amount of substances in the unit are called Molar Mass, which is represented by symbol M. When the quality of the substance is in gram, the unit of Moore is G/MOL, which is equal to the relative atomic quality or relative molecular mass of the substance in terms of value. For a certain pure object, its Moore quality is fixed, and the quality of the material changes with the amount of material material. For example, the quality of 1 mol O2 is 32 g, and the mass of 2 mol O2 is 64 g, but the quality of O2's Moore does not change, or 32 g / mo1. According to the accurate determination of scientific experiments, the number of carbon atom contained in 12G compared to 12g is about 6.02 × 10^23 (Avgardro constant).
The collective use of 6.02 × 10^23 collectives as a unit, called Moore. Moore is a unit that indicates the amount of material (symbol is n), referred to as Mo, and the unit symbol is MOL.
The basic units of the amount of material in the international unit system, referred to as Mo, international symbol MOL. The definition of Moore in the 14th International Measurement Conference in 1971 has the following two sections: "Moore is the amount of material of the system. The number of basic units contained in this system is equal to the number of atoms of 0.012kg carbon -12." "When using Moore, the basic unit should be used. It can be a specific combination of atoms, molecules, ions, electronics and other particles, or these particles." The previous two words should be regarded as a whole. The number of carbon atoms contained in 0.012kg carbon -12 nuclein is Avgardro constant (NA). The approximate value measured in the current experiment is NA = 6.02 × 10^23. Moore is different from ordinary units. It has two characteristics: ① its measurement object is micro basic unit, such as molecules, ions, etc., and cannot be used to measure macro substances. ② It takes the number of Avgardro as the metering unit. It is a batch, not the number of particles such as molecules, atoms, and other particles. It can also be used to measure specific combinations of micro -particles. For example, the amount of sulfuric acid by Moore measuring sulfuric acid, that is, 1mol sulfuric acid contains 6.02 × 10^23 sulfate molecules. Moore is the most chemical unit of measurement. If it is used for the calculation of the type of chemical reaction equation, the calculation of the solution, the formulation of the solution and its dilution, the calculation of chemical balance, the gas volume and thermal chemistry of the gas cannot be separated from this. basic unit.
Moore quality is the mass of the material, except the amount of material, the unit is gram per Moore, the volume of the Moore is the amount of material divided by the material, and the unit is the cubic meter per Moore. In the past, the volume of gram atomic, gram molecular weight, and gram molecular volume should be abolished.
Moore mass and Moore volume are the export volume of the amount of material. The basic unit must be indicated during the application. For the basic units specified in the same material, the quality and the volume of Moore are different.
Moore quality
. Although Avgardro's constant is a large value, it is very convenient to use the unit with Moore as a material. connect together.
We we know that the number of molecules, atoms or ions contained in different substances in 1mol is the same, but because the quality of different particles is different, the quality of different substances in 1mol is also different. So, what is the quality of different substances in 1mol?
The relative atomic quality of an element is based on 1/12 of 12C quality, and the atomic quality of other elements is obtained after it is compared with it. Through the learning concept of material quantity, we also know that the quality of 1mol12c is 0.012kg, that is, 0.012kg is 6.02 × 1023 12C quality. With the relationship between the same number of particles in any particle collective of 1mol, we can infer the quality of any particles of 1mol. For example, the mass ratio of 1 12C and 1 H is about 12: 1, so the mass ratio of 1mol12c to 1molh is also about 12: 1. Because the quality of 1mol12c is 0.012kg, the quality of 1molh is 0.001kg.
For atoms, the quality of any atom of 1mol is based on grams, which is equal to the relative atomic quality of this kind of atom in value. For example, the relative atomic mass of
o is 16g of 16G, 1molo; the relative atomic mass of
a is 23, and the mass of 1molna is 23g.
For molecules, the quality of any molecule of 1mol is based on grams, which is equal to the relative molecular mass (volume) of the molecule in the value. For example, the relative molecular mass of
O2 is 32, 1molo2 is 32g; r n NaCl's relative molecular mass is 58.5, and the mass of 1Mol NaCl is 58.5g.
ions are generated by atoms or lost electrons. Because the quality of electrons is small, the quality of the atom after obtaining or losing electrons is still similar to the quality of the atom. Therefore, for simple ions, the quality of any ionic ion is based on grams, which is equal to the relative atomic quality of the atomic atom that forms the ion. For example, it can be inferred that:
a The relative atomic mass is 23, 1mol Na is 23g; the quality of the relative atomic quality of
Cl -is 35.5g.
For more complex ions, such as atomic groups, the quality of any atomic group of 1mol is based on grams, which is equal to the sum of the atomic quality of the atom of the atomic group in terms of value. For example, the combination of the compared with atomic quality of
SO42 -96G is 96g; the quality of the relative atomic mass of
NH4 is 18g of 18g of 18g.
In the above analysis, it is not difficult to see that the quality of any particles or material 1mol is equal to the quality of the particles relative to atomic or relative molecular mass in terms of value. We call the quality of the amount of unit material as Moore quality. In other words, the quality of the Moore is the ratio of the quality of the substance to the amount of the substance. The symbol of Moore is M, and the commonly used units are G/Mol or KG/Mol①.
The amount of substance (n), the quality of the material (m), and the Moore mass (m) of the substance exist in the relationship:
For the examples above, they The Moore mass is:
o The Moore mass is 16g/mol;
A's Moore mass is 23g/mol;
O2's Moore mass is 32g/mol; Moore mass is 58.5g/mol;
Na Moore mass is 23g/mol;
CL -Moore mass is 35.5g/mol;
SO42 -Moore mass is 96g/mol;
NH4 Moore mass is 18g/mol.
The amount of substance (n), the quality of the material (m), and the Moore mass (m) of the substance exist in the relationship:
= m/m
where to buy wholesale sterling silver jewelry Mass, also known as weight index. It was the shock curve designed after Donald Dorsey accumulated the width of the stock price. The main role of this indicator is to find an important trend of rapid rise in stocks or extremely vulnerable stocks. The Mass indicator is the smallest risk factor in all interval shock indicators. The difference between the price wave between the stock price is suddenly ignorant and narrow, and the cycle is constantly repeated. Using this repetitive cycle band can accurately predict the trend of the stock price accurately. The technical indicators in the general market usually do not have this function. 1. Mass Line (MASS) = (the highest price-minimum price N1 daily simple movement average)/(the highest price-the lowest price N1 daily simplicity average N1 daily simplicity average N2 daily exhaustion) 2.mamass = MASS's m simple moving average 3. Parameter N1 is 9, parameter n2 is 25, parameter m is 61.mass curve traversed up 27, and then turned around and dropped 26.5. At that time, if the 9 -day mobile average of the stock price was on the rise, the long market was about to reverse the decline. 2. Mass curve traversed up 27, and then turned around and fell 26.5. At that time, if the 9 -day mobile average of the stock price was in a decline, the short market would soon reverse the rise. 3. Mass curve below 25 stocks generally do not have investment profits.