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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. ■
Wiki User
∙ 14y ago
Wiki User
∙ 15y agodepends 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"
Wiki User
∙ 13y agogiven mass / molar mass is one of the ways.
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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 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 mass of an unknown liquid in grams per mole?
you convert it to g/mole. Think of Mole as the word "dozen." Whenever you see the word "mole" just cross it out and put in the word "dozen". Do the problem like that, and then change all of your dozens to 6^1023. A dozen is 12. A bakers dozen is 13 and a mole is....whatever...some other big number. It doesnt matter. How do you calculate mass of a liquid in grams/dozen? You usese it's atomic weight which is in grams and then convert.
If krypton is 30.00 how many grams are their?
If the molecular weight is 30 grams/mole, you need to know the number of moles to calculate the weight. If you have 1 mole, this will yield 30 grams of krypton.
Calculate the mole fraction of benzene in solution containing 30 percent by mass in carbon tetrachloride?
calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetra chlorid
Calculate the mole fraction of HCl in 20 percent aqueous solution?
The mole fraction of HCl in 20 percent aqueous solution is 0.21.
Calculate the number of molecules in 1.56 mole of magnesium carbonate?
The answer is 9,3945.1023 molecules.
How do you calculate morality of 5.23 moles?
All morality is lost when destroying 77% of a mole
Calculate the number of moles of H atoms in 11.5mol H2O?
11.5 mole H2O (2 mole H/1 mole H2O)(6.022 X 10^23/1 mole H)(1 mole H/6.022 X 10^23) = 23.0 moles of H atoms
How you calculate the mass of 1.5 moles of oxygen molecule?
Multiply the molar mass value ( 32.0 grams per mole O2) by the number of moles (1.5 mole) to get its mass (48.0 grams for 1.5 mole O2)
How can you calculate the number of liters of 2.30 mole of helium gas at STP?
1 mole (or 4 g of He) occupies 22.414 liters. So, 2.3 mole occupies 2.3 x 22.414 liters = 51.5522 liters
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
Calculate the number of oxygen atoms in 0.1 mole of calcium permanganate?
2.4 × 10^23 is the answer
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 mass of an unknown liquid in grams per mole?
you convert it to g/mole. Think of Mole as the word "dozen." Whenever you see the word "mole" just cross it out and put in the word "dozen". Do the problem like that, and then change all of your dozens to 6^1023. A dozen is 12. A bakers dozen is 13 and a mole is....whatever...some other big number. It doesnt matter. How do you calculate mass of a liquid in grams/dozen? You usese it's atomic weight which is in grams and then convert.
Calculate the number of mole of hydrogen in 37.66gm?
37.66 (g H2) / 2.016 (g/mol H2)= 18.68 mole H2Molar mass of hydrogen: 2.016 (g/mol H2)
