Meaningless unless you specify the type of molecule.
2.8 moles of gold would be 550g of gold. Multiplying the amount of moles by the molar mass (197.0 grams/moles) will give you the grams by cancelling out the moles units.
500 grams of radium is equal to 2,21 moles.
1 moles CF4 = 88.0043128 grams. CF4 = 171 grams / 88 grams = 1.9431 moles
To find the number of moles in 57 grams of Xenon, divide the given mass (in grams) by the molar mass of Xenon. The molar mass of Xenon is 131.3 grams/mol. Therefore, 57 grams of Xenon is equal to 0.434 moles (57/131.3).
To calculate the number of moles from grams, you must divide by the substance's molar mass
The number 2.20 moles of Sn equals 261.14 grams. This is a taught in biology.
1 mol of any element is the atomic weight expressed in grams.
mol = mass/Mr If the Mr and number of moles of a substance is known then the mass can be calculated. example:- if we have 1 mole of Na, how many grams do we have? mass = mol x Mr mass = 1 x 23 mass = 23g
16 grams of oxygen how many moles is 0,5 moles.
2.8 moles of gold would be 550g of gold. Multiplying the amount of moles by the molar mass (197.0 grams/moles) will give you the grams by cancelling out the moles units.
The moles are converted into a number of particles by multiplying 6.02 by 10(with the power of 23)
See the Related Questions to the left of this answer:"How do you convert from grams to moles and also from moles to grams?"
Hey i am not in your class, but i took AP Chem in high school with AP Bio and i think i have your solution. The thing is when you look at Grains (a unit of measure that pharmacy's [pills] use) that can be converted into grams. Now once you got those grams you want to convert them to kilograms. From then Kilograms to Moles and Moles can then be converted into Molecules =) (remember moles = 6.24 X 10 ^ 23) =) Bye!!
.75 moles times 64 grams/mols = 48 grams
53 grams ÷ 18.01 grams/mole = 2.94 moles
# of moles = grams of substance / molar mass of substance molar mass of Barium =137.33 grams/mole #moles of Barium = 22.3 grams/ 137.33 grams/mole = 0.162382582 moles
moles = weight in grams / molecular weight = 56 / 28 = 2 moles