
(a)
Interpretation:
The total molarity of ions for each solution is to be calculated.
Concept introduction:
Molarity is defined as the number of moles of solute that are dissolved in one litre of solution. It is represented by
The formula to calculate the molarity of the solution is as follows:
(a)

Answer to Problem 13.119P
The total molarity of ions of solutions A, B and C are
Explanation of Solution
The formula to calculate the total molarity of ions of the solution is as follows:
Solution A has a total of 8 spheres.
Substitute 8 spheres for the number of spheres and
Solution B has a total of 10 spheres.
Substitute 10 spheres for the number of spheres and
Solution C has a total of 12 spheres.
Substitute 12 spheres for the number of spheres and
The total molarity of ions of solutions A, B and C are
(b)
Interpretation:
The highest molarity of the solute is to be determined.
Concept introduction:
Molarity is defined as the number of moles of solute that are dissolved in one litre of solution. It is represented by
The formula to calculate the molarity of the solution is as follows:
(b)

Answer to Problem 13.119P
Solution A has the highest molarity.
Explanation of Solution
The formula to calculate the molarity of the compound is as follows:
Solution A has a total of 8 spheres and the moles of dissociated ions are two (one positive and one negative charge).
Substitute 8 spheres for the number of spheres,
Solution B has a total of 10 spheres and the moles of dissociated ions are two (one positive and one negative charge).
Substitute 10 spheres for the number of spheres,
Solution C has a total of 12 spheres and the moles of dissociated ions are three (two positive and one negative charge).
Substitute 12 spheres for the number of spheres,
Solution A has the highest molarity.
Solution A has the highest molarity.
(c)
Interpretation:
The lowest molality of solute is to be calculated.
Concept introduction:
Molality is the measure of the concentration of solute in the solution. It is the amount of solute that is dissolved in one kilogram of the solvent. It is represented by
The formula to calculate the molality of the solution is as follows:
The density of the substance is defined as the mass per unit volume. It is represented by
The formula to calculate the density of the solution is as follows:
(c)

Answer to Problem 13.119P
Solution C has the lowest molality.
Explanation of Solution
Rearrange equation (5) to calculate the mass of the substance as follows:
Consider the equal densities of all the three solutions to be
Substitute
Substitute
Substitute
The formula to calculate the molality of the compound is as follows:
Solution A has a total of 8 spheres and the moles of dissociated ions are two (one positive and one negative charge).
Substitute 8 spheres for the number of spheres,
Solution B has a total of 10 spheres and the moles of dissociated ions are two (one positive and one negative charge).
Substitute 10 spheres for the number of spheres,
Solution C has a total of 12 spheres and the moles of dissociated ions are three (two positive and one negative charge).
Substitute 12 spheres for the number of spheres,
Solution C has the lowest molality.
Solution C has the lowest molality.
(d)
Interpretation:
The highest osmotic pressure is to be calculated.
Concept introduction:
The osmotic pressure is defined as the measure of the tendency of a solution to take in pure solvent via osmosis. It is defined as the minimum pressure that is to be applied to the solution to prevent the inward flow of the pure solvent across the semipermeable membrane. Osmosis occurs when two solutions have different concentrations of solute and are separated by a semipermeable membrane.
The formula to calculate the osmotic pressure of the solution is as follows:
Here,
(d)

Answer to Problem 13.119P
Solution A has the highest osmotic pressure.
Explanation of Solution
Consider the temperature to be
Solution A breaks into two ions so its van’t Hoff factor is 2.
Substitute 2 for
Solution B breaks into two ions so its van’t Hoff factor is 2.
Substitute 2 for
Solution C breaks into three ions so its van’t Hoff factor is 3.
Substitute 3 for
Solution A has the highest osmotic pressure.
Solution A has the highest osmotic pressure.
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Chapter 13 Solutions
Chemistry: The Molecular Nature of Matter and Change
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- Predict the products of this organic reaction: CH3 O CH3-CH-C-O-CH2-CH2-CH3 + H₂OH+ Η ? A Specifically, in the drawing area below draw the condensed structure of the product, or products, of this reaction. (If there's more than one product, draw them in any arrangement you like, so long as they aren't touching.) If there aren't any products because this reaction won't happen, check the No reaction box under the drawing area. No Reaction Click anywhere to draw the first atom of your structure.arrow_forward€ CH3-CH-C-O-CH2-CH2-CH3 + NaOH A? Specifically, in the drawing area below draw the condensed structure of the product, or products, of this reaction. (If there's more than one product, draw them in any arrangement you like, so long as they aren't touching.) If there aren't any products because this reaction won't happen, check the No reaction box under the drawing area. Predict the products of this organic reaction: CH3 O Click anywhere to draw the first atom of your structure. No reaction ✓ Garrow_forwardA molecule can have a temporary or permanent depending on the structure and the way the electrons can move. True Falsearrow_forward
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