Question 7 Which of the following solutes, would provide a solution with the lowest decrease of freezing point? 0.1 m KCI 0.05 m Fe (504) 9 022mHCOOH O 0.20 m NH₂NO, O 0.1 m CaCl₂ O

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Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chemistry
Question 7
Which of the following solutes, would provide a solution with the lowest decrease of freezing point?
O 0.1 m KCI
0.05 m Fe (SO4)
© 022mHCOOH
O 0.20 m NH₂NO,
O 0.1 m CaCl₂
Question 8
The molar mass of a solid sugar as determined by freezing-point depression calculated to be 15% higher than the accepted value.
Which of the following a student should not include in the justification of the error in the Discussion section?
O Some solid was left on the weighing paper.
O More than the recorded amount of solvent was added into the solution
O Some solute was spilled on the lab bench.
O The solid is a weak electrolyte, so it slightly dissociates
Transcribed Image Text:Chemistry Question 7 Which of the following solutes, would provide a solution with the lowest decrease of freezing point? O 0.1 m KCI 0.05 m Fe (SO4) © 022mHCOOH O 0.20 m NH₂NO, O 0.1 m CaCl₂ Question 8 The molar mass of a solid sugar as determined by freezing-point depression calculated to be 15% higher than the accepted value. Which of the following a student should not include in the justification of the error in the Discussion section? O Some solid was left on the weighing paper. O More than the recorded amount of solvent was added into the solution O Some solute was spilled on the lab bench. O The solid is a weak electrolyte, so it slightly dissociates
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