Avogadro's number, also called Avogadro's law, creates a constant value for different gases, regardless of weight and structure, which makes it a foundational law in chemistry. Italian scientist Amedeo Avogadro created his theory after observing that gases have equal volumes at given temperatures and pressures, and therefore contain the same number of molecules. Avogadro's number, written mathematically as 6.022 x 10^{23}, demonstrates the number of molecules present in any gas within the fixed volume of 22.41L.
Know MoreAvogadro proposed his theory in 1811, although his law did not gain widespread attention until the late 1850s, when Stanislao Cannizzaro, another Italian chemist, used Avogadro's law as a foundational base to demonstrate a complete and rational system of chemistry.
In addition to existing as a mathematical equation, Avogadro's law contains a written statement with a theory and rationale. The statement asserts that different gases, regardless of weight, have an equal number of molecules in a given fixed volume. Avogadro explains this phenomenon through the theory of kinetic gases, which bases its principles on the assumption of an ideal gas.
Avogadro's law holds true throughout the field of chemistry, provided equations use real gases with relatively low pressures and high temperatures. Avogadro's law also explains the volume occupied by gases, which is the same for all real gases based on a fixed temperature and pressure.
Learn more about NumbersThe number one is neither prime nor composite. Prime numbers are those defined as natural numbers greater than one not divisible by any other numbers but one and itself. Composite numbers have at least one additional positive divisor and include all whole numbers greater than one that are not prime.
Full Answer >A number that is multiplied by itself is called a base when it is written in exponential notation. Exponential notation consists of the number to be multiplied and a numeral in superscript to the right of it to indicate the number of times it is to be multiplied by itself.
Full Answer >The number one is neither prime nor composite. Prime numbers are positive integers greater than one that are evenly divisible only by themselves and one. Composite numbers are positive integers that have divisors other than themselves and one.
Full Answer >Tare weight is the weight of a container or vehicle, and it is typically subtracted from the gross weight to find the net weight of an item. Finding the tare weight is especially important in goods transportation where the tolls or taxes enforced vary by the goods net weight.
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