Colligathe Propertics of Soaon Questions 1. Suppose that in Part A of the experi
ID: 1042581 • Letter: C
Question
Colligathe Propertics of Soaon Questions 1. Suppose that in Part A of the experiment you confused the dialysis tube samples and put them into the wrong beakers. What results would have been observed? a. Both samples would increase in mass b. Both samples would decrease in mass. c. One sample would increase and the other would decrease in mass d. Both samples would remain essentially constant in mass. Explain your answer: 2. In the calculations used to obtain the ky values tabulated in Table 5, one fact has not been taken into account. This will cause a significant difference between the ky value obtained using NaCI solute and the value obtained using ethylene glycol solute. What is this fact? a. NaCl dissociates in solution while ethylene glycol does not. b. NaCl is solid while ethylene glycol is a liquid. c. NaCI is less soluble in water than ethylene glycol. d. NaCI has a higher melting point than ethylene glycol. Explain your answer 3. How should the ky value obtained with NaCI as the solute and recorded in Table 5 be modified before it is equivalent to the a. It should be multiplied by 2 b. It should be divided by 2 c. No modification is needed. value obtained using ethylene glycol solute? Explain your answer: 4. Suppose in Part C that a student ignores the direction in Step 9 to measure the boiling point as soon as the mixture boils steadily. As a result, a significant amount of the solvent (water) boils away and is lost. How would this mistake influence the measured boiling point compared to the correct value it would have if the mistake was not made? a. Measured value would be lower than correct value. b. Measured value would be higher than correct value. c. Measured value would not be different from correct value. Explain your answer custom pageExplanation / Answer
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(option d)= Both samples would remain essentially constant in mass seems to be the right answer.
Because dialysis tubes are placed in the wrong beakers thus no movement of particles would take place from tube to the solution or vice versa (as concentration of the solution in the beakers has not been mentioned) thus there would be no change in the mass. It would have possible onlu if there would have been any movement observed.