You must first find the molar mass of the element or compound. Use the Periodic Table (see the link to the left of the answer). If the chemical is an element, just read off the Atomic Mass from the periodic table. If it is a compound, you must know the molecular formula, and then you find the total molar mass of the compound by adding up the atomic masses of each atom in the compound. The unit of the molar mass will be in grams per moles (g/mole)
Once you have the molar mass, you can easily convert from grams to moles, and also from moles to grams.
Number of moles = (# of grams) / (molar mass)
Number of grams = (# of moles) * (molar mass)
Here are a two examples:
How many moles are in 5 grams of O2?
The molar mass of O2 = 16.00 g/mole x 2 (for 2 atoms of oxygen) or 32.00 g/mole.
5 g of O2 / (32 g/mole) = 0.15625 moles
How many grams does 4 moles of NH3 weigh?
The molar mass of NH3 = 14.01 + (3 * 1.01) = 17.04 g/mole
4 moles * 17.04 g/mole = 68.16 grams Grams in a MoleIn chemistry a mole is considered to be Avogadro's number (6.02 x 1023)of molecules (or atoms) of a substance - so depending on the density of the substance, the mass of that amount of the substance could vary widely.
One mole of hydrogen, for example, would have a different mass than one mole of lead. The question compares two different measurements of a given substance, rather like asking "how heavy is a gallon?". The question becomes "A gallon of what"?
*On the other hand, the Eastern Mole (Scalopus aquaticus) a small, burrowing mammal, weighs between 54 and 99 grams at adult size.
To convert grams to moles simply multiply the molar mass by the number of moles.
See the Related Questions to the left of this answer:"How do you convert from grams to moles and also from moles to grams?"
Moles is equal to grams divided by the mw therefore grams=(mw)(moles).
To convert grams into atoms, you have to convert them into moles first. Get the molar mass and multiply it by the number of moles to get the atoms.
42.7 grams of AL(OH) 3 to Moles
0.o235 moles of sugar to grams
1M is the mol wt in grams per litre of the substance.
Convert the grams into moles by dividing the grams with molecular mass. Then you get the no.of moles. Multiply the no. of moles with 6.022 x 1023 to get the no. of molecules.
For converting any substance in moles to grams:- Grams= No. of moles x Atomic or molecular mass.
The answer is 0,556 moles.
The answer is 1,54 moles.
Yes. You should convert grams to moles in order to use the ideal gas law. The units of the other variable, R (gas constant) has moles in it.
You can convert moles per litre into grams per litre by multiplying the value in grams per litre by the molecular weight. To calculate total moles or grams of solute in a volume of solution specified in grams or moles per litre, multiply by the total number of litres in the volume.
Actually, you can. You can convert grams to moles then moles to meters... or vise versa. usually the place of a mol is 1. unless you are good at chemistry.
Multiply no. of moles with the molecular mass of water i.e 18g to get the mass of water in grams
Divide grams by the molar mass of the substance.
The molar mass of a compound is expressed in grams.
The mole is the molar mass of a compound in grams.
convert to liters, then multiply by density of substance. with the grams, use the moles=mass/molar mass to find moles
To convert grams to moles you need mercury's atomic mass: 200.59 grams/mole. You can then take your measurement and divide it by the atomic mass to get moles.Grams Ã· Atomic mass = Moles50.15 grams Ã· 200.59 grams = 0.2500 moles Hg
Mass in grams = Number of moles x Molecular mass (or atomic weight for elements)
grams divided by the molecular weight to get to moles moles divided by volume to get molarity
Molecular weight x no of moles = amount of grams.
32,5 g NaCl equal 0,556 moles.
Multiply number of moles by the molecular mass of the element or compound
number of moles = mass of the substance/molar mass of the substance