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Solutions&Gas quiz
| Question | Answer |
|---|---|
| Define Solution | a mixture of two or more substances that is homogenous, or spread evenly throughout |
| Define Solute | substance that is being dissolved |
| Define Solvent | substance that dissolves things (water is a universal solvent) |
| Define Homogeneous | combined throughout |
| Define Heterogeneous | separated throughout |
| Define Unsaturated | solution contains less than max amount of solute capable of being dissolved |
| Define Supersaturated | solution contains more dissolved solute than the max amount of solute that is capable of being dissolved at a given temperature |
| Define Dilute | when amount of solute is relatively small compared to amount of solvent |
| Define Solubility | amount of substance that is required to form a saturated solution in a given amount of solvent at a specific temperature |
| What happens in terms of solubility when a substance is heated? | Solubility increases- Solvent molecules are moving faster, so it bumps into and breaks apart more of the solute |
| What happens when a gas substance is heated in terms of solubility? | Solubility decreases-Energy becomes so high that molecules are likely to break apart |
| What happens when more pressure is put on a gas in terms of solubility? | Solubility increases- More molecules in an area make it so they bump together more |
| Equation of Molarity | mole solute/1.0 L of solution |
| Equation of Molality | mole solute/kg of solution |
| Define Colligative properties | properties of a solution that only depends on the number of solute particles dissolved in the solution and not on their identity |
| Define Freezing point depression | difference in temperature between freezing point of solution compared to solvent |
| Define Boiling point elevation | difference in temperature between boiling point of pure solvent and solution |
| Soluble compounds | alkali metal, ammonium, nitrate , acetate, chlorate, bicarbonate |
| Mostly soluble compounds | chloride, bromide, iodide, sulfate |
| Mostly insoluble compounds | silver, lead, mercury, calcium, strontium, barium, carbonate, phosphate, chromate, sulfide, silicate, hydroxide |
| Conditions for Standard Temp and Pressure (STP) | 1.0 atm and 273 K or 0℃ |
| Define Pressure | how often the gas molecules in a container collide with each other and the container |
| Define Boyle’s Law | when temperature increases, the pressure increases if the volume stays the same |
| Gay-Lussac’s Law | when volume decreases, the pressure increases if temperature remains the same |
| Combined Gas Law | (P x V)/T=k |
| Charles’s Law | V/T = k |
| Avogodro’s Law | V/n =k |
| Partial Pressure | Ptotal = P1 + P2 + P3 … |
| Ideal Gas Law | PV=nRT |
Created by:
hhorner25
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