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Why is the average mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
How is a mole related to the atomic mass?
The atomic mass, in grams, is the mass of one mole of atoms.
The atomic mass of a mole?
When isotopes are considered, they have the same atomic number but differed mass numbers.
How many grams equal a teaspoon?
It depends on what substance you are referring to.
How do you determine the number of moles in an element?
Multiply the # of grams by the element's atomic weight. Or if dealing with milliliters, multiply the volume by solutions molarity. When calculating a molecule's # of moles, multiply the # of grams by the molecular weight.
Why is the average mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
How is a mole related to the atomic mass?
The atomic mass, in grams, is the mass of one mole of atoms.
What is the molar mass of a substance in amu grams per mole?
The molar mass of a substance is the mass of one mole of that substance, measured in atomic mass units (amu) or grams per mole.
The atomic mass of a mole?
When isotopes are considered, they have the same atomic number but differed mass numbers.
What is the atomic weight in grams per mole of the element?
The atomic weight in grams per mole of an element is the average mass of one mole of atoms of that element, measured in grams.
How many grams equal a teaspoon?
It depends on what substance you are referring to.
How do you determine the number of moles in an element?
Multiply the # of grams by the element's atomic weight. Or if dealing with milliliters, multiply the volume by solutions molarity. When calculating a molecule's # of moles, multiply the # of grams by the molecular weight.
How many grams in one mole?
That depends on the substance, and on whether you are considering atoms ore molecules. One mole has as many grams as the atomic or molecular mass of the substance. For example, one mole of atomic hydrogen has 1 gram; one mole of molecular hydrogen has 2 grams, one mole water has 18 grams, etc., since those numbers are the corresponding atomic or molecular masses.
How do you convert 40 mmol of Sodium to grams?
A mole is 6.022*10^23 of a substance. An element's atomic mass, the number below the element's atomic symbol on the periodic table, is the number of grams one mole of that substance weighs. Multiply the number of moles of substance (here, 40 if you meant 40 moles or .04 if you meant millimoles) by the atomic mass of the substance (here, sodium's is 22.98977) to get the final answer in grams.
How does the atomic mass measure?
The atomic mass is the average weight of one mole of a substance (6.022 * 10^23 atoms or molecules) in grams. For elements, this is usually around double the number of protons but varies due to isotopes containing more or fewer neutrons.
How do you convert 2.9 grams to moles?
To convert grams to moles, you need to divide the given mass (2.9 grams) by the molar mass of the substance. The molar mass of a substance can be found by adding up the atomic masses of all the atoms in a molecule.
What does the atomic mass of an element indicate?
The average weight in grams of one mole of the element.
