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What does s Avogadro's law say about a gas at STP?
Avogadro's law states that equal volumes of gases at the same temperature and pressure contain the same number of molecules. Therefore, at standard temperature and pressure (STP), a given volume of gas will contain the Avogadro number of molecules, which is approximately 6.022 x 10^23.
Is carbon a gas liquid or solid?
Carbon can exist as a solid, liquid, or gas, depending on its form. Graphite and diamond are solid forms of carbon, while carbon dioxide is a gas, and liquid carbon can exist in supercritical conditions.
Gas is contained in an 8.0-L vessel at a temperature of 20C and a pressure of 9.0 ATM a Determine the number of moles of gas in the vessel b How many molecules are in the vessel?
a) PV=nRT R=0.08214 L(atm)/mol(K) and you know the rest of the values... so make sure you have the right units and solve for n n= 9*8/(0.08214*20) n=43.82 b) part a found the number of moles, so just use Avagadro's number, which is the number of atoms or molecules in a mole 43.82*6.023*10^23 that will give you the molecules of gas in the vessel
Is carbon gas solid liquid?
Carbon is a solid at room temperature.
Is carbon a solid liquid gas or plasma?
Carbon can exist in various forms: as a solid (such as graphite or diamond), as a liquid (molten carbon in certain conditions), and as a gas (carbon dioxide). However, carbon is not typically found in a plasma state in normal everyday conditions.
Who said one mole of gas contains avogadro's number of atoms?
Amadeo Avogadro!
What ia a mole of gas?
A mole of gas is a standard unit used in chemistry to represent a large number of particles of a gas, approximately 6.022 x 10^23 particles. It is equivalent to the number of carbon atoms in 12 grams of carbon-12. This number is known as Avogadro's number.
Who calculated this number the number of molecules in a mole of gas?
It was the scientist Amedeo Avogadro (1776-1856), who lived in Turin (now Italy).
An Avogadro's number for any gas is equivalent to?
6.02*10raised to the power of 23
What is Avogardos number?
The Avogadro constant (symbols: L, NA) is the number of "elementary entities" (usually atoms or molecules) in one mole, that is (from the definition of the mole), the number of atoms in exactly 12 grams of carbon-12.[2][3] It was originally called Avogadro's number. The 2006 CODATA recommended value is[1]:The Avogadro constant is named after the early nineteenth century Italian scientist Amedeo Avogadro, who, in 1811, first proposed that the volume of a gas (at a given pressure and temperature) is proportional to the number of atoms or molecules regardless of the nature of the gas.
What are some common Avogadro's Law problems encountered in chemistry?
Some common Avogadro's Law problems in chemistry involve calculating the volume, number of moles, or number of particles of a gas when the pressure and temperature are known. These problems often require using the Avogadro's Law equation, which states that the volume of a gas is directly proportional to the number of moles of gas at constant temperature and pressure.
What law was used to determine the relationship between the volume and the number of moles in this equation?
The ideal gas law: PV=nRT Where n=the number of moles
How many molecules of carbon dioxide are there in 1.0 grams of the gas?
The gram molecular mass of carbon dioxide is about 44.01 grams. By definition, this value is the number of grams of carbon dioxide that contains Avogadro's Number ("AN") of molecules. Avogadro's Number is about 6.022 X 10^23. Therefore the number of molecules in 1 gram is (1/44.01)(AN) or 2 X 10^21 molecules, to the justified number of significant digits.
What does Avogadro's law state?
Avogadro's law states that equal volumes of gases at the same temperature and pressure contain the same number of particles, regardless of the type of gas. This law is based on the concept that the volume of a gas is directly proportional to the number of moles of gas present.
What is an expression of Avogadro's law (kconstant)?
An expression of Avogadro's law is V1/n1 = V2/n2, where V represents volume and n represents the number of moles of a gas. This law states that at constant temperature and pressure, the volume of a gas is directly proportional to the number of moles of the gas.
How is the Loschimidt's number related to the Avogadro's number?
The Loschmidt constant, NL is related to Avogadro's number, NA by the relationship:NL = p0*NA/(R*T0) wherep0 is the pressureT0 is the thermodynamic temperature andR is the gas constant.
What does s Avogadro's law say about a gas at STP?
Avogadro's law states that equal volumes of gases at the same temperature and pressure contain the same number of molecules. Therefore, at standard temperature and pressure (STP), a given volume of gas will contain the Avogadro number of molecules, which is approximately 6.022 x 10^23.
