Mole scaling or mole conversion refers to converting between the amount of substance (in moles) and other units such as grams or molecules. Here are some common conversions involving moles:
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Moles to Grams: \[ \text{mass (g)} = \text{moles} \times \text{molar mass (g/mol)} \]
- To convert moles to grams, you multiply by the molar mass of the substance.
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Grams to Moles: \[ \text{moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \]
- To convert grams to moles, you divide the mass by the molar mass.
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Moles to Molecules: \[ \text{number of molecules} = \text{moles} \times N_A \]
- Where \( N_A \) is Avogadro's number (\( 6.022 \times 10^{23} \) molecules/mol).
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Molecules to Moles: \[ \text{moles} = \frac{\text{number of molecules}}{N_A} \]
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Moles to Liters (at STP): \[ \text{volume (L)} = \text{moles} \times 22.4 , \text{L/mol} \]
- Under standard temperature and pressure (STP), one mole of an ideal gas occupies 22.4 liters.
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Liters to Moles (at STP): \[ \text{moles} = \frac{\text{volume (L)}}{22.4 , \text{L/mol}} \]
When performing these conversions, it's essential to know the molar mass of the substance you're dealing with, which can be found on the periodic table for elements or calculated for compounds. If you have a specific conversion in mind, feel free to provide details, and I can assist further!