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3 Steps to Solution Formation |
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Definition
1.) Solute breaking apart (energy in/required) 2.) Solvent expands/ creates space (energy in/required) 3.)Solute-Solvent interaction (energy out/released) |
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Is there a willingness to expand to a larger volume if permitted? |
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delta S: disorder "like-like" molecule interaction means a higher delta S/disorder "like-unlike" molecule interaction not really any delta S/disorder |
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Factors Affecting Solubility |
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Definition
1. Pressure: gas solubility is dependent on the pressure of a gas on the surface of the liquid. 2. Temperature: levels of saturation and state of matter dependent. high temp = lower gas solubility and usually higher solid solubility (exception Ce2(SO4)3). low temp = higher gas solubility and usually lower solid solubility (there are exceptions). 3. Solute-Solvent Interaction: polar and non-polar relationships. so like dissolves like and the stronger the attraction, the more solubility. As the length off a non polar chain gets longer, in comparison, the place to hydrogen bond gets smaller and it becomes less soluble in water and more soluble in something polar. |
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Mass % = (mass of part/mass of whole) x 100 |
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Mole Fraction = mole of part/ total moles. or Xa |
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M = moles of component/ volume of solution (L) |
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m = moles of component/ kg of solvent
*solvent: larger, solute: smaller. In sugar water, water is the solvent and sugar is the solute. also if you dissolve anything in water it is called hydration. |
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