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In chemistry, the molar mass is an important quantity. It measures the mass of a mole of a given substance.
The pressure is a widely used quantity; it is found in physics, chemistry, engineering, and biology. Because of the wide usage of pressure, it has adopted various units to express it. And it is necessary for us to know the relationship between various units of pressure.
The mole is a unit of measurement. It is one of the seven fundamental SI base units, others are the kilogram, the second, the metre, the ampere, the kelvin, the candela. The mole is the SI unit of amount of substance. The approximate value of one mole of any substance is 6.022 × 1023. The symbol mol is used to denote it.
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