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How is the mass of a compound determined from the number of moles?
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How is a number of moles of an element determined from a known mass?
The number of moles is mass in g/molar mass in g.
How is the mass compound determined from the number of moles?
Multiply the number of moles times the molar mass of the compound. Moles cancel and you are left with mass in grams.For example: What is the mass of 2.47 moles of sodium chloride, NaCl?Known: The molar mass of NaCl is 58.44g/mol. (Using atomic weights in grams from the periodic table.)Solution:2.47mol NaCl x 58.44g/mol NaCl = 144g NaCl
Formula for moles?
number of moles = mass of the material/molar mass
What is the gram mass of compound if 5 moles of the compound has a mass of 100 grams?
The molar mass is 20 g.
How many moles of calcium are in 15.5 g calcium chloride?
If grams/molar mass=moles, then first the molar mass of the compound must be found. CaCl2 has a molar mass of 110.984. Divide the number of grams, 15.5, by 110.984, and you get the number of moles. Now, seeing as calcium is not diatomic like oxygen or chlorine, there needs to be no conversion between the number of moles of calcium in the compound and the number of moles of calcium outside of the compound. atoms, the number of calcium atoms in the compound divided by one mole of the compound will give us the ratio. Conveniently enough, that ratio is one calcium atom per molecule of calcium chloride, meaning that for every one mole of calcium chloride, 1 mole of pure calcium can be extracted. So once you find the number of mole of CaCl2, that is the number of moles of calcium as well. This may be a little difficult to grasp, but I'm sure that your teacher, if you're a student, will be able to explain why rather well.
How is a mass of a compound determined the number of moles?
The molar mass of a compound is equal to 1 mol.
How is the mass of a compund determined from the number of moles?
1 mol is equivalent to the molar mass of a compound, in grams.
How is the number of moles determined from a known mass?
Number of moles = Total mass/Molar mass
How is a number of moles of an element determined from a known mass?
The number of moles is mass in g/molar mass in g.
How is the mass compound determined from the number of moles?
Multiply the number of moles times the molar mass of the compound. Moles cancel and you are left with mass in grams.For example: What is the mass of 2.47 moles of sodium chloride, NaCl?Known: The molar mass of NaCl is 58.44g/mol. (Using atomic weights in grams from the periodic table.)Solution:2.47mol NaCl x 58.44g/mol NaCl = 144g NaCl
How is the number of moles of an element determined froma known mass?
the molar mass is used as a conversion factor to convert grams to moles
Formula for moles?
number of moles = mass of the material/molar mass
How is the number of moles of an element determined from the known mass?
The molar mass is the measurement of mass per one mole of a substance. If the mass of a matter is known, divide it from the molar mass to obtain the number of moles.
How is the number of moles of an element determined from known mass?
The molar mass is the measurement of mass per one mole of a substance. If the mass of a matter is known, divide it from the molar mass to obtain the number of moles.
How do you work out the number of moles of unknown compound if you are only given the molar mass?
The molar mass of any compound contain a number of molecules equal to the number of Avogadro:6,022 140 857(74).10e+23.
Which statement shows how to correctly convert from the mass of a compound in grams to the amount of that compound in moles?
Moles = Mass (g) x Molar mass (g)
How many moles in NaCHO3?
A mole is a defined number of atoms/molecules of an element/compound. Therefore, the number of moles of NaCHO3 will depend on the mass of NaCHO3 that you have. To calculate the number of moles in a known sample, divide the mass of the sample (in grams) by the molecular weight.
