Mole Conversions

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What is a mole in chemistry?

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A mole is a unit of measurement used to express amounts of a chemical substance. It is defined as the amount of substance that contains as many entities (atoms, molecules, etc.) as there are in 12 grams of carbon-12.

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How many atoms are in one mole of a substance?

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One mole of any substance contains approximately 6.022 x 10^23 entities, known as Avogadro's number.

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What is the molar mass of an element?

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The molar mass of an element is the mass of one mole of that element, typically expressed in grams per mole (g/mol).

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How do you convert grams to moles?

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To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol). Formula: Moles = Mass (g) / Molar Mass (g/mol).

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What is the molar mass of AlCl3?

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The molar mass of AlCl3 (Aluminum Chloride) is approximately 133.33 g/mol.

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How do you calculate the mass of a sample from the number of moles?

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To calculate the mass of a sample from the number of moles, multiply the number of moles by the molar mass of the substance. Formula: Mass (g) = Moles x Molar Mass (g/mol).

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What is the mass of one mole of silver (Ag)?

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The mass of one mole of silver is 107.87 g.

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How do you find the number of atoms in a given mass of a substance?

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To find the number of atoms in a given mass, first convert the mass to moles, then multiply by Avogadro's number. Formula: Number of Atoms = (Mass (g) / Molar Mass (g/mol)) x Avogadro's Number.

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What is the molar mass of CO2?

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The molar mass of carbon dioxide (CO2) is approximately 44.01 g/mol.

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How many moles are in 48.86 g of cobalt (Co)?

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To find the number of moles in 48.86 g of cobalt, divide by its molar mass (58.93 g/mol): Moles = 48.86 g / 58.93 g/mol = 0.8291 moles.