Compound A has a larger enthalpy (heat) of condensation than compoundB. Which of the following statements is true?i. Heat will be released during the condensation of both substances.ii. Compound A will have a lower normal boiling point than compound B.iii. Compound A will have a lower vapour pressure at 25°C than compoundВ.Only statement (ii) is true.O Only statements (i) and (iii) are true.Only statement (iii) is true.O All three statements are true.O Only statements (i) and (ii) are true. Rank the following aqueous solutions in increasing osmotic pressure at 298K, assuming complete dissociation where appropriate.I. 0.100 M NaClII. 0.200 M formaldehyde (H2C=O)III. 0.100 M Ca(NO3)2III > || = | OIl > III = | OIII > || > I OIII > | > || OIII || = | O

Since you have posted multiple questions, we are entitled to answer the first only.

Rank the following aqueous solutions in increasing osmotic pressure at 298 K, assuming complete dissociation where appropriate. I. 0.100 M NaCl II. 0.200 M formaldehyde (H2C=O) III. 0.100 M Ca(NO3)2 III > || = | O II > III = | O III > || > I O III > | > || O III || - | O

Rank the following aqueous solutions in increasing osmotic pressure at 298 K, assuming complete dissociation where appropriate. I. 0.100 M NaCl II. 0.200 M formaldehyde (H2C=O) III. 0.100 M Ca(NO3)2 III > || = | O II > III = | O III > || > I O III > | > || O III || - | O

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Compound A has a larger enthalpy (heat) of condensation than compound
B. Which of the following statements is true?
i. Heat will be released during the condensation of both substances.
ii. Compound A will have a lower normal boiling point than compound B.
iii. Compound A will have a lower vapour pressure at 25°C than compound
В.
Only statement (ii) is true.
O Only statements (i) and (iii) are true.
Only statement (iii) is true.
O All three statements are true.
O Only statements (i) and (ii) are true.

Rank the following aqueous solutions in increasing osmotic pressure at 298
K, assuming complete dissociation where appropriate.
I. 0.100 M NaCl
II. 0.200 M formaldehyde (H2C=O)
III. 0.100 M Ca(NO3)2
III > || = | O
Il > III = | O
III > || > I O
III > | > || O
III || = | O

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