<p> Name______Hr_____ Date______Chemistry: Unit 10 Solutions Test Review</p><p>1. In a solution, the substance being dissolved is the ______.</p><p>2. The most commonly used solvent is ______.</p><p>3. Ethylene glycol (antifreeze) and water are completely miscible. If you mix 20 mL of ethylene glycol with 10 mL of water in a beaker, what would you expect to see?</p><p>4. A solution of sodium chloride and water is what type of mixture?</p><p>5. The most precise description of water and oil would be to say that these two substances are ______.</p><p>6. Give several examples of an emulsifying agent?</p><p>7. What are the properties of an emulsifying agent? (In other words, what do they do? For what are they used?)</p><p>8. A silver colored dental filling is a(n) ______and an iodine solution for cuts is a(n) ______.</p><p>9. Give two examples of alloys:</p><p>10. What are the four factors that affect the rate of dissolution?</p><p>11. Some drugs taken by athletes can show up on drug tests many months after the athlete last took them. These drugs are probably ______and ______.</p><p>Use your solubility curve to answer the next five questions:</p><p>12. Between 40oC and 60oC, which compound shows the largest increase in solubility?</p><p>13. The solubility of which compound is LEAST affected by temperature?</p><p> o o 14. The solubility of KNO3 increases by approximately ______when the temperature rises from 10 C to 60 C.</p><p> o 15. For 140 g of KI (in 100 g H2O) at 10 C, the solution would be described as being ______.</p><p>16. Which of the following solutions is unsaturated? 60 g of KCl (in 100 g of water) at 80oC 40 g of NaCl (in 100 g of water) at 90oC o 145 g of NaNO3 (in 100 g of water) at 45 C o 45 g of NH4Cl (in 100 g of water) at 45 C</p><p>17. A solution of HCl is 0.300 M. Determine the mass of HCl needed to make 150 mL of solution.</p><p>18. A 2.33 M solution of Na2CO3 contains 87 g of solute. Find the volume of the solution. 19. If 28 g of NaOH are in 1.3 L of solution, find the molarity of the solution. </p><p>20. Determine the molarity of the NaHCO3(aq) solution if 300 mL of this solution react with 6 g of H2SO4.</p><p>2 NaHCO3(aq) + H2SO4(aq)  Na2SO4(aq) + 2 CO2(g) + 2 H2O(l)</p><p>21. Increasing the temperature of a liquid generally causes the solubility of a solid in a liquid to______.</p><p>22. Decreasing the temperature of a liquid generally causes the solubility of a gas in a liquid to______.</p><p>23. Substances whose water solutions conduct electricity are called ______.</p><p>24. Calculate the molarity of a solution made by adding 20.0 g of NaOH to enough water to make 250 mL of solution.</p><p>25. Approximately what volume of solution will be obtained when 40 g KNO is used to prepare a 2.0 M solution? 3</p><p>26. If more water is added to a solution, the molarity of the solution ______.</p><p>27. About what volume of 33.6 M formic acid is needed to make 5.0 L of 2.0 M formic acid (HCOOH)?</p><p>28. Benzene, toluene, phenol, and hexane are organic solvents, and therefore contain much of which element?</p><p>29. Give an example of a suspension. What makes it a suspesion versus a solution?</p><p>30. Concentrated sulfuric acid has a molarity of 18.0 M. About how much water should be added to the concentrate to make 360 mL of 4.5 M sulfuric acid?</p><p>31. Consider the balanced equation: H2SO4 + 2 KOH  K2SO4 + 2 H2O. What volume of a 0.16 M KOH solution will react completely with 35 L of 0.26 M H2SO4 ?</p>