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Assuming that you are trying to find the number of moles in an elemental sample, you would take the mass of the sample, and divide by the atomic weight of the substance. This will give you the number of atoms. You this divide this by Avogadro's number (6.0221415 x 1023). This will give you the number of moles in the sample.
I even saw a mole once, but it was chased under the porch by a cation. ■
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JudyA mole is a unit of measurement used in chemistry to express amounts of a substance. One mole is equal to the number of atoms in 12 grams of carbon-12, which is approximately 6.022 x 10^23. To calculate the number of moles in a sample of a substance, you divide the mass of the sample by the molar mass of the substance (mass per mole).
depends on what you are trying to convert to moles if you start with atoms, molecules or formula units, then you use the ration "1 mol / 6.02 x 10^23" if you start with a compound, such as H2O, then you would use the formula "1 mol/ 18 g" the 18 grams is the mass off of the Periodic Table if you start with a gas, then the formula is "1 mol/ 22.4 L"
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Calculate the number of molecules in 1.56 mole of magnesium carbonate?
The answer is 9,3945.1023 molecules.
How do you calculate number of mole in 36grams of oxygen?
1 mole O = 15.9994g 36g O x 1mol O/15.9994g O = 2.3 moles O
How do you calculate mass of an unknown liquid in grams per mole?
To calculate the mass of an unknown liquid in grams per mole, you would need to know the substance's molar mass (g/mol) and the amount of the substance in grams. Then, divide the mass in grams by the molar mass to get the value in grams per mole.
How do you calculate number of molecules in a mole?
The number of molecules in a mole is a constant - Avogadro number;NA = 6,02214129(27)×1023 mol−1
How do you calculate energy per mole of photons if you know joules per photon?
To calculate the energy per mole of photons from the energy per photon, you need to multiply the energy per photon by Avogadro's number (6.022 x 10^23) to account for the number of photons in a mole. The formula is: Energy per mole of photons = Energy per photon x Avogadro's number.
