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What is the difference between the mass of a mole of oxygen and a mole of O2 molecules?
Wiki User
∙ 14y ago
A mole of oxygen atoms has a mass of approximately 16 grams. A mole of O2 has a mass of approximately 32 grams. A mole is 6.02 x 1023 particles and as such a mole of oxygen atoms has only half the mass of a mole of oxygen molecules.
Wiki User
∙ 14y ago
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What is the molar mass of oxygen gas?
Oxygen gas is composed of diatomic O2 molecules. From the Periodic Table, the atomic weight indicates that the molar mass of oxygen atoms is 16.0g/mole. The diatomic molecule O2 has twice the molar mass as oxygen atoms, and its molar mass is 32g/mole.
What is the difference between formula mass and the molecular mass of a compound?
1 mol is equal to 6.02214179(30)×1023 molecules of the substance. The molecular weight is how much grams these molecules (6.02214179(30)×1023) weigh. Meaning g/mol.
How many oxygen molecules can be made from 52.8 grams of water?
The formula of water is H2O and that of oxygen molecules is O2. The fraction by mass of oxygen in water is the atomic mass of oxygen divided by the molecular mass of water, which in turn is the sum of the atomic mass of oxygen and twice the atomic mass of hydrogen, or {15.999/[15.999 + 2(1.008)]} = 0.888, to sufficient significant digits to correspond to the problem information of 52.8 grams of water. The mass of oxygen in this amount of water therefore is 0.888 X 52.8 = 46.9 grams. The molecular mass of oxygen atoms is 2 X 15.999 = 32.0, so that 46.9 grams corresponds to 46.9/32.0 = 1.466 moles of oxygen molecules. The number of molecules per mole of any substance is Avogadro's number, 6.022 X 1023. The answer to the problem is this number multiplied by the number of moles = 1.466 X 6.022 X 1023 = 8.83 X 1023.
What is the mass difference between water and hydrogen plus oxygen?
The mass of water would be equal to the mass of oxygen plus the mass of hydrogen used in the reaction. The law of the conversation of mass states that in a reaction no mass is either gained or lost. In this case the total amount of mass of the reactants (Oxygen and Hydrogen), according to the law of the conversation of mass, must be equal to the product (water), because no mass can be lost or gained during the reaction.
Why does a rusty nail weigh more than the original nail?
Rust is iron oxide, a molecule consisting of iron and oxygen. The mass of the iron in the rust molecules comes from the original nail, but the mass of the oxygen has come from the air. When rust forms on iron, the mass of the iron object is increased by the mass of the oxygen that has combined with some of the iron.
What is the difference between atomic mass an molecular mass?
Atomic mass is defined for atoms. Molecular mass is defined for molecules or compounds. Atoms bond with each other to form compounds.
What is the difference between mass and water?
Mass is a unit of measurement and water is a substance. Namely a combination of hydrogen and oxygen in a 2 to 1 ratio.
What is the difference between measuring mass and weight?
Mass is the amount of matter or molecules that a specific object is composed of. Weight is the measure of gravity's pull on you. Does this help answer your question?
Why hydrogen in water is heavier than pure hydrogen?
To clear up any confusion: water is not a mixture of hydrogen and oxygen; it is a compound. The hydrogen and oxygen are chemically bonded to each other to form a completely different substance. There are two reasons for the difference in density. First, molecules of elemental hydrogen are only weakly attracted to one another, so hydrogen exists as a gas with a lot of space between molecules. Water molecules are very strongly attracted to one another and so water exists as a liquid with much less space between molecules. Second, a water molecule contains two hydrogen atoms and one oxygen atom. One oxygen atom has about 16 times the mass of a hydrogen atom, so most of the mass of water is actually oxygen. One water molecule is about 9 times the mass of a hydrogen molecule.
What is the molar mass of ozone?
Ozone contains 3 molecules of oxygen. Molar mass of ozone is 48.
What is the molar mass of oxygen gas?
Oxygen gas is composed of diatomic O2 molecules. From the Periodic Table, the atomic weight indicates that the molar mass of oxygen atoms is 16.0g/mole. The diatomic molecule O2 has twice the molar mass as oxygen atoms, and its molar mass is 32g/mole.
What is the difference between Aston's mass spectrograph and Dempster's mass spectrometer?
what is difference between mass spectrograph and mass spectrum
What is the difference between formula mass and the molecular mass of a compound?
1 mol is equal to 6.02214179(30)×1023 molecules of the substance. The molecular weight is how much grams these molecules (6.02214179(30)×1023) weigh. Meaning g/mol.
How many oxygen molecules are there in in 4 g of oxygen?
Assuming you mean oxygen gas, the number of molecules can be found by first finding the number of moles = mass of oxygen (4g) / Molecular mass of oxygen gas (32 g mol-1) This tells us there is 0.125 mol of oxygen gas present. The number of molecules present is given by the number of moles x the avogadro constant (6.022x10^23) So the number of oxygen gas molecules present is equal to 0.125 x 6.022x10^23 = 7.5275x10^22 molecules
What is heavier Hydrogen gas or oxygen gas How do you know?
Oxygen is heavier as it has a mass number of 16 whereas hydrogen has a mass number of 1. Both form diatomic molecules (molecules of two atoms) making the formula masses 32 for oxygen and 2 for hydrogen.
What mass of oxygen two moles of O2 molecules have molor mass of O2 is 32 grms per mole?
64g
Which elements make up the most common compound in the human body?
Hydrogen and oxygen Water is the most common molecule, between 55 and 65% of our mass. Hydrogen accounts for 63% of our atoms, but oxygen accounts for 65% of our mass. (Both hydrogen and oxygen are part of many other molecules besides water.)
