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2 13. What is the expected electrical conduc electrolyte? Why?) (b) hydrochloric acid: HCI(aq) -- ionic

2 13. What is the expected electrical conduc electrolyte? Why?) (b) hydrochloric acid: HCI(aq) -- ionic

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter11: Solutions And Colloids
Section: Chapter Questions
Problem 8E: Solutions of hydrogen in palladium may be formed by exposing Pd metal to H2 gas. The concentration...
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1 I| L 2 | I 3 14 E II 13. What is the expected electrical conductivity of the following solutions? (Is it an electrolyte? Why?) (b) hydrochloric acid: HCI(aq) -- ionic (c) glucose (sugar): C,H,,O,(aq) - covalent Factors affecting solubility 17. Supersaturated solutions of most solids in water are prepared by cooling saturated solutions. Supersaturated solutions of most gases in water are prepared by heating saturated solutions. Explain the reason for the difference in the two. concentration calculation 19. Calculate the percent by mass of KBr in a saturated solution of KBr in water at 10 °C. (Use 60 g KBr solute per 100 g H,O solvent from Figure 11.16) colligative properties: b.p. elevation 69. A sample of HgCl, weighing 9.41 g is dissolved in 32.75 g of ethanol, C,H,OH (K, = 1.20 °C/m). The boiling point elevation of the solution (AT) is 1.27 °C. Determine if HgCl, is an electrolyte in ethanol (does it break apart into ions?). Show your calculations. %3D [First, use AT =K_m to find the predicted b.p. elevation based on molality of compound, vs molality of ions & then compare your results to the observation.]
Transcribed Image Text:1 I| L 2 | I 3 14 E II 13. What is the expected electrical conductivity of the following solutions? (Is it an electrolyte? Why?) (b) hydrochloric acid: HCI(aq) -- ionic (c) glucose (sugar): C,H,,O,(aq) - covalent Factors affecting solubility 17. Supersaturated solutions of most solids in water are prepared by cooling saturated solutions. Supersaturated solutions of most gases in water are prepared by heating saturated solutions. Explain the reason for the difference in the two. concentration calculation 19. Calculate the percent by mass of KBr in a saturated solution of KBr in water at 10 °C. (Use 60 g KBr solute per 100 g H,O solvent from Figure 11.16) colligative properties: b.p. elevation 69. A sample of HgCl, weighing 9.41 g is dissolved in 32.75 g of ethanol, C,H,OH (K, = 1.20 °C/m). The boiling point elevation of the solution (AT) is 1.27 °C. Determine if HgCl, is an electrolyte in ethanol (does it break apart into ions?). Show your calculations. %3D [First, use AT =K_m to find the predicted b.p. elevation based on molality of compound, vs molality of ions & then compare your results to the observation.]
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