1. Which term describes a substance that has other substances dissolved in it?
9. Which equation correctly represents the dissociation of magnesium sulfate?
A. solute B. electrolyte
A. B. C. D.
C. solvent D. immiscible
2. Which of the following factors DOES NOT affect the rate of dissolving? A. temperature B. stirring
C. ion charge D. color
3. Which solution is most concentrated? A. B. C. D.
20.0 mL of 0.100 mol/L NaCl 95.0 mL of 0.500 mol/L HCl 100.0 mL 0.250 mol/L NaOH 30.0 mL of 1.00 mol/L H2O2
4. What volume of 9.80 mol/L nitric acid would contain 2.00 mol of solute? A. B.
0.204 L 0.490 L
C. D.
4.90 L 19.6 L
5. Which term best describes a solution that cannot dissolve any more solute at a given temperature? A. saturated B. solvated
C. supersaturated D. unsaturated
6. What is the molar concentration of a solution formed by dissolving 0.125 mol of solid KOH in 750 mL of water? A. 1.7 10 mol/L C. 6.00 mol/L B. 0.167 mol/L D. 93.8 mol/L -4
10. What is the molar concentration of a 222 mL solution prepared using 0.23 mol of sodium nitrate? A. 0.051 mol/L B. 0.45 mol/L
C. 0.97 mol/L D. 1.0 mol/L
11. What volume of a 1.23 mol/L NaCl contains 0.340 mol of solute? A. 0.276 L B. 0.418 L
C. 0.984 L D. 3.62 L
12. Which solution contains the greatest number of moles of solute? A. B. C. D.
100 mL of 0.100 mol/L KNO3 300 mL of 0.400 mol/L CaCl2 200 mL of 0.0500 mol/L NaCl 400 mL of 0.0400 mol/L Mg(NO3)2
13. What volume of pure hydrogen peroxide is needed to prepare 155 mL of a 2.3%(v/v) solution? A. 0.67 mL B. 1.5 mL
C. 2.5 mL D. 3.6 mL
7. What mass of sodium hydrogen carbonate (NaHCO3) is required to make 250.0 mL of a 10.0%(m/v) solution?
14. Calculate the concentration of a sterilizing solution prepared by dissolving 30.0 mL of hydrogen peroxide in enough water to make 1000.0 ml of solution.
A. 4.00 g B. 25.0 g
A. 0.0300 mol/L B. 3.00% (v/v)
C. 33.6 g D. 2.50 kg
C. 30 mol/L D. 33.0% (m/v)
8. What is the SI unit for molar concentration?
15. Calculate the concentration of Fe2+(aq) ions in a 3.00 mol/L solution of Fe3(PO4)2(aq)
A. mol/L B. mol/kg
A. 1.00 mol/L B. 3.00 mol/L
C. g/mol D. ppm
C. 6.00 mol/L D. 9.00 mol/L
Short Answers: Show ALL workings 1. Calculate the molar concentration of a 20.0 mL barium hydroxide sample that is reacted with 33.4 mL of 0.103 mol/L hydrochloric acid.
2. Calculate the mass of baking soda that will react with 25.6 mL of 1.00 mol/L hydrochloric acid. HCl(aq) + NaHCO3(s) NaCl(aq) + H2O(l) + CO2 (g)
3. List three factors that affect solubility. Give a general statement about the affects they have on solubility.
4. Use the data provided to express the concentration of a solution in the desired unit. A. 15.0 g of gold in a 25.0 g copper and gold alloy - percent by mass
B. 15.00 mL of acetic acid mixed with 300.0 ml of water to make vinegar - percent by volume
5. Calculate the mass of fluoride ions present in 473 mL of bottled water that has a fluoride ion concentration of 0.50 ppm.
6. What volume of 7.50 M sulfuric acid can be prepared from 5.0L of concentrated sulfuric acid (18.0 M)?
What volume of 9.80 mol/L nitric acid. would contain 2.00 mol of solute? A. 0.204 L C. 4.90 L. B. 0.490 L D. 19.6 L. 5. Which term best describes a solution that.
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Controllers based on input-output design. â. Control of systems subject to stochastic disturbances. Finally we would like to thank collegues and students who have helped us to test the book and the solutions. Karl J. à ström. Björn Wittenmark. De
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Thus, the negative sign on PS was to be expected. Part (b) The computer results include the following covariance matrix for the coefficients on PNC and PUC.
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In option (a) n = 6 and e = 16/2 = 8. So here ... (A) To form oriented graph on n vertices, we will have 3 options for ... So they violate minimum degree condition.
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