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
The number 2.20 moles of Sn equals 261.14 grams. This is a taught in biology.
To convert grams to moles, you need to know the molar mass of the substance. Divide the given mass in grams by the molar mass to find the number of moles. This calculation is done using the formula: moles = grams / molar mass.
To find the mass of 1.54 moles of H2O, you can use the molar mass of water. The molar mass of H2O is 18.015 grams/mol. Therefore, the mass of 1.54 moles of H2O would be 1.54 moles * 18.015 grams/mol = approximately 27.75 grams.
Mass in grams = no of moles x molecular mass. So, mass in grams = 5.2x 56 = 291.2g
number of moles = mass of the material/molar mass
The number 2.20 moles of Sn equals 261.14 grams. This is a taught in biology.
Meaningless unless you specify the type of molecule.
1 mol of any element is the atomic weight expressed in grams.
To convert grams to moles, you need to know the molar mass of the substance. Divide the given mass in grams by the molar mass to find the number of moles. This calculation is done using the formula: moles = grams / molar mass.
To find the mass of 1.54 moles of H2O, you can use the molar mass of water. The molar mass of H2O is 18.015 grams/mol. Therefore, the mass of 1.54 moles of H2O would be 1.54 moles * 18.015 grams/mol = approximately 27.75 grams.
Mass in grams = no of moles x molecular mass. So, mass in grams = 5.2x 56 = 291.2g
number of moles = mass of the material/molar mass
all you have to do to fine the moles of any element is divide the given grams by the molar mass (which you can find on a periodic table of elements) Likewise, if you need to find the grams, just multiply the number of moles by molar mass. moles = grams/molar mass grams = moles x molar mass your equation should look like this: moles = 89.0 / 17.0 moles = .471
The formula is number of moles = mass / molecular mass. So say we have 1 mole of water. We look at the periodic table and molecular mass is 1+1+16 = 18g/mol. 1 mole x 18g/mol is 18 grams.
To convert moles to grams, you use the molar mass of calcium. The molar mass of calcium is approximately 40.08 g/mol. Therefore, 1.3 moles of calcium would be 1.3 moles x 40.08 g/mol = 52.10 grams of calcium.
The molar mass of ammonia is about 17 grams, so that 3 moles would have a mass of 51 grams.
The molar mass of gold is approximately 197 grams/mol. To convert moles to grams, you multiply the number of moles by the molar mass. Therefore, 2.8 moles of gold would be approximately 2.8 * 197 = 551.6 grams.