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How do you find the mass of an atom with only the molar mass given?
Wiki User
∙ 11y ago
Molar mass of an element is the atomic weight on the Periodic Table in grams. 1 mole of atoms of an element is 6.022 x 1023 atoms. To find the mass of one atom of an element, divide the element's molar mass by 6.022 x 1023 atoms.
Example:
Sodium, Na, has a molar mass of 22.989770g/mol (atomic weight in grams)
1 mole Na atoms = 6.022 x 1023 atoms
Solution:
22.989770g/mol x 1mol/6.022 x 1023 atoms = 3.818 x 10-23g/atom
Wiki User
∙ 11y ago
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How do you convert from number of particles to moles?
You must first calculate the molar mass of the substance. To do so, you add up the molar masses of all the elements that make up the compound, multiplied by the number of atoms of that element in one molecule of the substance. For example, AgNO3 has a molar mass of about 169.8 amu. In one molecule of AgNo3, there is one atom of Silver (molar mass 107.8), one atom of Nitrogen (molar mass 14), and three atoms of Oxygen (molar mass 16). Multiply the molar mass of Silver by the number of Silver atoms (1), multiply the molar mass of Nitrogen by the number of Nitrogen atoms (1), multiply the molar mass of Oxygen by the number of Oxygen atoms (3), add the numbers up and you have the molar mass of the substance (169.8). Step 2 is easy. To convert from grams to moles, you divide the number of grams by the molar mass (units for molar mass are grams per mole, so dividing by molar mass cancels the grams). To convert from moles to grams, you multiply by the molar mass.
How many moles are in 42 grams of CO2?
just short of a mole. moles is mass/molar mass. mass is 42, molar mass is 44. 42/44
What is the mass in grams in 1.00 molar mass FE?
What is the chemical 'FE'. Do you mean 'Fe'. If so to answer your question . The molar mass of iron (Fe) is 55.845
What is the molar mass of C2H5OH?
A molecule of ethanol has 2 carbon atoms, 6 hydrogen atoms and 1 oxygen atom. Their atomic masses are 12, 1 and 16 in order. By adding of the masses, the molecular mass of ethanol is 12x2+1x6+16=46u.
How do you find the mass of an object when you are given the volume and density of the object?
You can find the mass of the object by multiplying volume and density.
How do you find the molar mass of an atom?
Molar mass is a term applied for molecules, not for atoms.
How do you find moles of hydrogen?
Since molar mass of hydrogen is 1g , the no. of moles = mass of hydrogen given. or No. of moles= Given mass of substance/Molar mass of substance
What is a molar mass and how many atoms are in 1 mole of anything?
molar mass is just the moleular mass of an atom or molecule.
What type of alcohol has a molar mass of 4.75 grams?
The molar mass of the lightest alcohol, methanol, is 32.04 grams per mol. No alcohol has a molar mass of 4.75 grams. To find the molar mass of a substance, you sum the mass of every atom that makes up your compound. For methanol, you add the mass of three hydrogens, a carbon, and an oxygen atom. An alcohol group, more properly a "hydroxyl," consists of an oxygen and a hydrogen and contributes about 17 grams per mol to the molar mass (about 16 g/mol for an oxygen atom and 1 for a hydrogen). Hope this helps!
What is molar mass of iron?
The molar mass of iron is 55.845g per mol. Molar mass is the mass of a given substance divided by its amount of substance.
What do you mean by molar mass of an element?
Molar mass is defined as the mass of 6.022x1023 atoms/molecules of a given substance.
How many times an atom of sulfur is heavier than an atom of carbon?
Sulphur has a molar mass of 32.065. Carbon has a molar mass of 12.01. 32.065 / 12.01 = 2.67. So an sulphur atom is 2.67 heavier than an carbon atom.
How do you calculate the molar mass of ammonia?
To calculate molar mass, you use the following formula.Molar Mass = Given mass / number of moles.For example if you are given that there is 85 gram of ammonia and it is 5 moles. Then Molar Mass = 85/5 = 17 g.
What is the mass of 3.2 moles of Cl?
The molar mass, that is mass per mole is given in the periodic table. The mass of one Cl-atom is approximately 35,45g/mole. In Cl2 there are 2, henbce you multiply the molar mass with 2.
What does the number above the symbol represent?
The atomic number.
How do you find the molar mass of an elemnt?
Molar mass is a term applied for molecules, not for atoms.
The molar mass of C3H8O2 is?
to find molar mass you add the molar mass of the carbons 3(amu)+ molar mass of the hydrogens 8(amu) to find molar mass you add the molar mass of the carbons 3(amu)+ molar mass of the hydrogens 8(amu)
