CAVA Chem 302 303 S1U6L3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| a chemical equation really only shows the [...] of atoms or molecules that react and the [...] of atoms or molecules produced. | a chemical equation really only shows the number of atoms or molecules that react and the number of atoms or molecules produced.
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| A convenient way for chemists to express the [...] of atoms or molecules is by using the mole. | A convenient way for chemists to express the numbers of atoms or molecules is by using the mole.
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| A mole is a unit for measuring [...] of atoms or molecules, but really it could be used to measure anything. | A mole is a unit for measuring numbers of atoms or molecules, but really it could be used to measure anything.
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| The mole is defined as the number of atoms in exactly [...] g of carbon-12. | The mole is defined as the number of atoms in exactly 12 g of carbon-12.
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| 1 mole is about [...] of anything. | 1 mole is about 6.022 * 10^23 of anything.
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| Moles were created in such a way that the [...] of any element would be the molar mass (mass of one mole in grams) of that substance. | Moles were created in such a way that the atomic mass (in amu) of any element would be the molar mass (mass of one mole in grams) of that substance.
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| Molar mass is the mass of a [...] of substance. | Molar mass is the mass of a mole of substance.
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| Molar mass is almost always expressed in [...] per mole, or [...]/mol | Molar mass is almost always expressed in grams per mole, or g/mol
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| the unit mol is the abbreviation for the [...]. | the unit mol is the abbreviation for the mole.
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| The molar mass of a compound is calculated by [...] the molar masses of each atom in the chemical formula. | The molar mass of a compound is calculated by adding the molar masses of each atom in the chemical formula.
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| Molar mass is used to convert between moles and [...]. | Molar mass is used to convert between moles and mass.
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| The molar mass of something (g/mol) is a [...] factor to convert between grams and moles of that substance. | The molar mass of something (g/mol) is a conversion factor to convert between grams and moles of that substance.
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| To convert moles to mass, use the [...] as a conversion factor. | To convert moles to mass, use the molar mass as a conversion factor.
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| To convert mass to moles, use the [...] as a conversion factor. | To convert mass to moles, use the molar mass as a conversion factor.
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Created by:
mr.shapard
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