5. When substances form solutions with water, they always dissolve, but sometimes they also dissociate. (i) Explain the difference between the terms dissolve and dissociate. Then, (ii) explain why ionic substances must dissociate to dissolve in water while covalent substances do not have to dissociate to dissolve in water.

5. When substances form solutions with water, they always dissolve, but sometimes they also dissociate. (i) Explain the difference between the terms dissolve and dissociate. Then, (ii) explain why ionic substances must dissociate to dissolve in water while covalent substances do not have to dissociate to dissolve in water.

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...

See similar textbooks

Similar questions

Both acids and bases form ions in solution. How does the process of ion formation differ between acids and bases?
Write the net ionic equation, which should include the charges, and the phases of each species in the reaction, along with it being balanced.
Aluminum sulfate, known as cake alum, has a remarkably wide range of uses, from dyeing leather and cloth to purifying sewage. In aqueous solution, it reacts with base to form a white precipitate. (a) Write balanced total and net ionic equations for its reaction with aqueous NaOH. (Type your answer using the format (NH4)2CO3 for (NH4)2CO3, [NH4]+ for NH4+, and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients. Type the cation before the anion.)overall equation (aq) + NaOH(aq) (aq) + (s)net ionic (aq) + (aq) (s)(b) What mass of precipitate forms when 104.5 mL of 0.616 M NaOH is added to 517 mL of a solution that contains 18.4 g aluminum sulfate per liter? g
Physiological saline concentration—that is, the sodium chloride concentration in our bodies—is approximately 0.16 M. A saline solution for contact lenses is prepared to match the physiological concentration. If you purchase 25 mL of contact lens saline solution, how many grams of sodium chloride have you bought?
Both the reactants Sodium Carbonate and the product sodium Chloride are white solids and cannot be distinguished by looking at them. Can you think of any chemical tests you could do to prove that it is not NaCI2?
A student carries out the following experiments and records the following observations. 1. A few drops of a solution of KOH (aq) is added to a solution of Cu(NO3)2 (aq). A blue gelatinous solid forms immediately upon addition. 2. A few drops of a solution of KOH (aq) is added to a solution of NaNO3 (aq). No changes are observed. 3. A few drops of a solution of KOH (aq) is added to an unknown solution that could contain Cu2+(aq) and/or Na+(aq) ions (the solution could contain both ions, just one of the ions, or neither ions). A blue gelatinous solid forms immediately upon addition. Select all of the answers that are consistent with the data from those 3 experiments. Group of answer choices The unknown contains Cu2+(aq) and Na+(aq) The unknown contains Cu2+(aq) The unknown contains Na+(aq) The unknown contains neither Cu2+(aq) or Na+(aq)
Much of the sulfur used in the United States comes from the hydrogen sulfide contaminant that makes "sour" natural gas smell bad. Hydrogen sulfide is separated from the other components of natural gas mostly by taking advantage of its acid-base reaction with aqueous ethanolamine: HO(CH,),NH,(aq)+H,S(g) → HO(CH,),NH,(aq)+HS (aq) Suppose an engineer decides to study the rate of this reaction. She prepares four reaction vessels with 167.6 mL of ethanolamine solution and 20.9 g of hydrogen sulfide gas each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. vessel volume temperature A B C D 5.0 L 5.0 L 5.0 L 5.0 L 49, °C 48. °C 51. °C 50. °C X initial rate of…
Magic Acid® is the commercial name for a 1:1 mixture of fluorosulfonic acid, HSO3F, and antimony pentafluoride, SbF5, that generates H2SO3F+ cations – this last species qualifies as a superacid. Can Magic Acid® be diluted in water and retain its superacid property? Justify your answer and include at least one chemical equation.
The concentration of gold in seawater is 0.0027 ug/L. What mass of gold (in kg) is present in the Atlantic Ocean, of volume 3.23 x 1011 km3 ?
The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3, which is equivalent to milligrams of CaCO3 per liter of water. What is the concentration of Ca2+ ions in water sample with a hardness count of 188 mg CaCO3/L?
Aqueous solutions of bases cannot be prepared. contain only two different elements. carry electricity. have very high boiling points.
Write the balanced NET ionic equation for the reaction when aqueous MgSO4 and aqueous Ba(NO3)2 are mixed in solution to form aqueous Mg(NO3)2 and solid BaSO4. Be sure to include the proper phases for all species within the reaction.