5182627
Descrição
FlashCards por Bee Brittain, atualizado more than 1 year ago
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Criado por Bee Brittain
mais de 8 anos atrás
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| Questão | Responda |
| Define: Amount of Substance | Chemist's use 'amount of substance' as a means of counting atoms. The unit is the 'Mole' |
| One Mole = | 6.02*10^23 |
| Define 'Avogadro's Constant' | The number of atoms per mole of the Carbon-12 isotope (6.02*10^23) |
| Number of Moles = | (Number of particles you have) / (number of particles in a mole) |
| The mass of one mole of an element = | Its relative atomic mass in grams |
| 1 mole of H = | 1 mole of hydrogen atoms |
| 1 mole of H2 = | 1 mole of hydrogen molecules |
| Molar mass | Molar mass gives the mass in grams of a substance |
| Moles = | Mass / Mr Mass in grams / molar mass |
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