Masse molaire moyenne: 174,20 g/mol


How can you calculate the mass of a known number of atoms of an element July 28

How can you calculate the mass of a known number of atoms of an element
Credit:Wayne CalabreseThe Image BankGetty ImagesStep 1: Calculate the number of moles from the number of atoms. Divide the number of atoms by 6.02 x 1023, the number of atoms in one mole of ...

What is the molar mass of HF July 28

Hydrogen, represented by the chemical symbol H, has an atomic mass of 1 gram per mole. Fluorine, represented by the chemical symbol Fl, has an atomic mass of 18.99 grams per mole. Adding together 1 gram per mole and 18.99 grams per mole results in th

What is 602 times 10 to the 23rd power July 28

According to the Encyclopaedia Britannica, Avogadro's number is the number of units, usually atoms or molecules, found in one mole of any substance. This means that a mole, by definition, always contains the same number of units, regardless of the su

What does raw copper look like July 28

Copper is a chemical element that has an atomic symbol of Cu and an atomic number of 29. It has an atomic mass of 63.5 grams/mole and is classified as a transition metal. Copper is an essential metal to all living organisms on Earth. It is known as a

Does humid air rise or fall July 28

This seems counter-intuitive, because objects seem to get heavier when water is added; but in this case, it is water vapor. The molecular mass of water is 18 grams per mole. Air is mainly nitrogen and oxygen, with molecular masses of 28 grams per mol

What is RMS velocity July 29

In the formula, R is the ideal gas constant (approximately 8.31 kg m^2 s^2 / K mol), T is the absolute temperature in Kelvin and M is the mass in kilograms of one mole of the gas. To use this formula, one must convert the molar mass of the gas, which

What is the molar mass of Na3SO4 July 28

For Na3SO4, the molar mass is found by adding together the atomic mass of three atoms of sodium, one atom of sulfur and four atoms of oxygen. The atomic mass for each of these elements is found on the periodic table of elements. Each atom of oxygen h

What is the molar mass of H2 July 28

Each atom of hydrogen has an atomic weight of 1.01 grams per mole. Since there are two atoms of hydrogen in dihydrogen, its molar mass is equal to 1.01 plus 1.01 grams per mole. Molar mass is a physical property of single atoms or compounds and is fr

What is the molar mass of Al2O3 July 28

The molar mass is determined by combining the atomic weight of each atom in the compound. As there are two atoms of aluminum, that element contributes a total of 52.96 grams per mole to the total molar mass. The three oxygen atoms contribute a total

What is the molar mass of lithium July 28

What is the molar mass of lithium
Credit:AFP/Getty ImagesAFPGetty ImagesThe atomic mass for lithium is found on the bottom part of the Li square on the periodic table of elements. The other number, listed on top of the symbo ...

What is a good analogy for the mole concept July 28

What is a good analogy for the mole concept
Credit:Tom HahnE+Getty ImagesMoles are used by chemists because they deal with such large numbers. Atoms and molecules are so incredibly small that scientists needed to invent a convenient u ...
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