Moles to grams and grams to moles

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What is a mole in chemistry?

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A mole is a unit of measurement used to express the amount of a 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 do you convert moles to grams?

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To convert moles to grams, use the formula: grams = moles × molar mass. The molar mass is the mass of one mole of a substance, usually 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, use the formula: moles = grams / molar mass. The molar mass is the mass of one mole of a substance, usually expressed in grams per mole (g/mol).

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What is the molar mass of rubidium bromide (RbBr)?

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The molar mass of rubidium bromide (RbBr) is approximately 165.34 g/mol.

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What is the molar mass of silicon dioxide (SiO2)?

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The molar mass of silicon dioxide (SiO2) is approximately 60.08 g/mol.

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What is the molar mass of potassium permanganate (KMnO4)?

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The molar mass of potassium permanganate (KMnO4) is approximately 158.04 g/mol.

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What is the molar mass of zinc sulfide (ZnS)?

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The molar mass of zinc sulfide (ZnS) is approximately 97.44 g/mol.

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If you have 0.25 moles of a substance with a molar mass of 165.34 g/mol, what is the mass?

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Mass = 0.25 moles × 165.34 g/mol = 41.34 g.

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If you have 30.0 grams of silicon dioxide (SiO2), how many moles do you have?

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Moles = 30.0 g / 60.08 g/mol = 0.50 moles.

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Which weighs more: 1 mole of lithium (Li), 1 mole of carbon (C), 1 mole of sodium (Na), or 1 mole of silicon (Si)?

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1 mole of silicon weighs the most.