QUESTION 1The general rule of solubility is “like dissolves like.” True False4 points QUESTION 2Medications must undergo a series of tests before being released to the public. True False4 points QUESTION 3You can increase the concentration of a solution by adding more water. True False4 points QUESTION 4If you increase the volume of a container of gas and all other conditions are kept constant, the pressure will:A.IncreaseB.Initially increase then decreaseC.Remain the sameD.Decrease4 points QUESTION 5If you increase the number of moles of a gas in a fixed volume container kept at a constant temperature:A.The volume will increaseB.The pressure will decreaseC.The temperature will decreaseD.The pressure will increase4 points QUESTION 6If 10.0 mL of a 1.536 M solution of NaOH was poured into 24.0 mL of distilled water, the concentration of the resulting solution is __________ M.4 points QUESTION 7In order to make 100 mL of a 0.512 M NaCl solution, then _________ g of NaCl is needed.4 points QUESTION 8Name brand drugs are always better than generic brand drugs. True False4 points QUESTION 9A student uses cabbage juice pigment to test the aciditiy of a lemon-lime soft drink. If the soft drink is acidic, you would expect the cabbage solution to turn:A.BlueB.GreenC.PurpleD.Red4 points QUESTION 10Which of the following types of molecules will not dissolve in water?A.Ionic moleculesB.Polar moleculesC.Non-polar moleculesD.All of these4 points QUESTION 11Which of the following types of molecules will dissolve in oil?A.Only ionic and nonpolar moleculesB.Only ionic moleculesC.Only polar moleculesD.Only nonpolar molecules4 points QUESTION 12Which of the following substances will dissolve in water but not in mineral oil?A.None of theseB.CandleC.NaOHD.Vegetable oil4 points QUESTION 13Order these substances from lowest pH (most acidic) to highest pH (most basic). – 1. 2. 3. 4. 5. 6. 7. 8. 9. Oven cleaner – 1. 2. 3. 4. 5. 6. 7. 8. 9. Ammonia – 1. 2. 3. 4. 5. 6. 7. 8. 9. Vinegar – 1. 2. 3. 4. 5. 6. 7. 8. 9. Baking soda – 1. 2. 3. 4. 5. 6. 7. 8. 9. Water – 1. 2. 3. 4. 5. 6. 7. 8. 9. NaOH – 1. 2. 3. 4. 5. 6. 7. 8. 9. Blood – 1. 2. 3. 4. 5. 6. 7. 8. 9. HCl – 1. 2. 3. 4. 5. 6. 7. 8. 9. Milk4 points QUESTION 14Container A has 3 moles of gas in a 3 L container kept at a temperature of 273 K. Container B has 3 moles of a gas in a 3 L container kept at a temperature of 298 K. Which of the following statements is true?A.Container B has a higher pressure.B.The pressure in both containers is constantly fluctuating.C.Container A has a higher pressure.D.Both containers have the same pressure.4 points QUESTION 15Container A has 1 mole of a gas in a 2 L container kept at 2 atm of pressure. Container B has 1 mole of gas in a 2 L container kept at 1 atm of pressure. Which container has the higher temperature?A.Container BB.Both containers have the same temperatureC.Not enough information to determine which has the higher temperatureD.Container A4 points QUESTION 16You are given two solutions. Solution A was made by dissolving 8.0 g of copper sulfate in 200 mL of water. Solution B was made by dissolving 15.0 g of copper sulfate in 300 mL of water. Which has the higher concentration, or are they the same?A.Solution A has the higher concentrationB.They both have the same concentrationC.Solution B has the higher concentrationD.Not enough information provided to determine which is more concentrated4 points QUESTION 17A drug may be used to treat more than one type of symptoms/sickness. True False4 points QUESTION 18Medications are more effective if you take more than the recommended dosage. True False4 points QUESTION 19If you add red cabbage pigment to a basic solution, it will turn green. True False4 points QUESTION 20The combined gas law is:A.k = PVTB.k = PT/VC.k = PV/TD.k = VT/P4 points QUESTION 21Which of the following statements is true?I. The pH of an acidic solution is less than 7II. The pH of a neutral solution is appoximately 7III. The pH of a basic solution is less than 7A.I & II onlyB.I onlyC.II & III onlyD.II only4 points QUESTION 22You are given 350.0 mL of a 2.358 M Na2CO3solution. There are ________ moles ofNa+ present in the solution.4 points QUESTION 23If you want to increase the pressure of a gas in a fixed container, what could you do?I. Increase the temperatureII. Increase the number of molesIII. Increase the volumeA.I onlyB.II onlyC.I & II onlyD.II & III only4 points QUESTION 24You are given 45.0 mL of a 2.018 M solution of NaCl. If all of the water is allowed to evaporate, then the mass of the NaCl left in the container is _________ g.4 points QUESTION 25In order to make 350 mL of a 2.50 M HCl solution from a 12.1 M stock solution, then _________ mL of the 12.1 M stock HCl solution is needed.4 points
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