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Because chlorine (like almost every other element) exists as several isotopes. The molar mass reflects the combined weight and proportion of each of those isotopes.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoBecause atoms (of almost every other element) exists as several isotopes. The molar mass reflects the combined weight and proportion of each of those isotopes.
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If you know the molar masses of the reactants in a chemical reaction can you determine the molar masses of the products?
If you know know the molar masses of the reactants in a chemical reaction you can determine the molar masses of the products because the combined molar masses of the reactants equals the combined molar masses of the products.
What is the percent composing of calcium Ca in CaO?
It would seem that because calcium and oxygen are in equal molar ratio for this compound that it would be 50 percent. But that is incorrect, because they each have differing molar masses. Oxygen has a molar mass of 16.000 and calcium has a molar mass of 40.078. So calcium is 40.078/56.078, which is 71.47 percent.
How do you calculate the formula mass in amu?
The atomic weight (not mass) of an element is dtermined considering the isotopic composition of the element and the atomic masses of these isotopes. For the calculation see the link below.
What information is needed to calculate the mass of calcium oxide that can be produced frrom 4.7 kg of calcium carbonate?
molar masses of calcium, carbon, oxygen
What is molar mass in chemistry?
Complex Answer: Molar mass is the sum of the masses of all the atoms in a compound. Molar mass, is a physical property characteristic of a given substance (chemical element or chemical compound), namely its mass per mole of substance as grams per mole (g/mol or g mol−1), especially in chemistry. A mole is another unit of measurement. It is the quantity of anything that has the same number of atoms found in 12 grams of carbon-12. That number is Avogadro's Number, which is usually stated as 6.022 x 1023.Simple Answer: It is the amount of a substance in moles.
If you know the molar masses of the reactants in a chemical reaction can you determine the molar masses of the products?
If you know know the molar masses of the reactants in a chemical reaction you can determine the molar masses of the products because the combined molar masses of the reactants equals the combined molar masses of the products.
What is molar mass a whole number multiple of?
Molar mass is a whole number multiple of the Empirical formula mass
What are the molar masses of pbBr2?
The molar mass of PbBr2 is 367.008 g/mol
What is the molar mass of H2O to the nearest whole number?
18g/mol
What do the molar masses of any two elements contain the same number of what?
Atoms have atomic weight not molar mass. Any atom-gram has 6,022 141 29(27)×1023 (this is the number of Avogadro) atoms.
How many Buckyballs are in a kilogram?
Buckyballs can be in a range of molar/molecular masses, so the number of them in one kilogram can be very different.
Is defined as the sum of the atomic masses in the molecule?
This is the molar mass.
Is it okay to round atomic masses to the nearest whole number?
No, it is not correct.
Why does 10 g nitrogen gas contain the same number of molecules as 10 g of carbon monoxide?
These compounds have equal molar masses.
What is the molar mass of CO2 rounded to the nearest whole number?
The answer is simple it's one/1
What is the sum of the atomic masses in a molecule?
Molecular mass.
Why is the relative atomic mass of chloride not a whole number?
Because relitive atomic masses are NEVER whole numbers.
