Making Solutions Video & Text Solutions For College Students

Making Solutions

Q. Is each solution unsaturated, saturated, or supersaturated?A. A solution contains 50 g of NaCl per 100.0 g of water at 25°C.B. A solution contains ...

Solved • Oct 23, 2020

Making Solutions

Q. What is the result of boiling the impure product with too much solvent and then cooling on ice?a. Small crystals are producedb. Crystals with impur...

Solved • Oct 19, 2020

Making Solutions

Q. A solution contains 45 g of KNO3 per 100.0 g of water at 25 °C. Is the solution unsaturated, saturated, or supersaturated?

Solved • Oct 19, 2020

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Q. What is Brownian motion? How is it related to the development of the idea that matter is particulate?Match the words in the left column to the appr...

Solved • Jun 25, 2020

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Q. Here are the solubilities of some salts in water. For each salt, determine how much will remain undissolved if 500 g is mixed into a liter of pure ...

Solved • Jun 16, 2020

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Q. Complete each of the following concentration terms with the correct ratio of quantities.

Solved • Apr 28, 2020

Making Solutions

Q. Determine whether each of the following solutes is more soluble in hot water or cold water.sulfur dioxidechlorineheliumsucrosesodium chloride

Solved • Aug 2, 2019

Making Solutions

Q. A supersaturated solution of sucrose (C12H22O11) is made by dissolving sucrose in hot water and slowly letting the solution cool to room temperatur...

Solved • Dec 3, 2018

Making Solutions

Q. The solubility of Cr(NO3)3 • 9H2O in water is 208 g per 100 g of water at 15˚C. A solution of Cr(NO3)3 • 9H2O in water at 35˚C is formed by dissolv...

Solved • Dec 3, 2018

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Q. The solubility of Cr(NO3)3 •9 H2O in water is 208 g per 100 g of water at 15 oC. A solution of Cr(NO3)3 •9 H2O in water at 35 oC is formed by disso...

Solved • Dec 3, 2018

Making Solutions

Q. The solubility of Cr ( NO3 )3 9 H2O in water is 208 g per 100 g of water at 15 oC. A solution of Cr ( NO3 )3 9 H2O in water at 35 oC is formed by d...

Solved • Dec 3, 2018

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Q. Precipitation from a supersaturated sodium acetate solution. The solution on the left was formed by dissolving 156 g of the salt in 100 mL of water...

Solved • Dec 3, 2018

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Q. For the dissolution of LiCl in water, Hsoln = -37 kJ/mol.Which term would you expect to be the largest negative number: Hsolvent, Hsolute, or Hmix?

Solved • Dec 3, 2018

Making Solutions

Q. An ionic compound has a very negative Hsoln in water.Which term would you expect to be the largest negative number: Hsolvent, Hsolute, or Hmix?

Solved • Dec 3, 2018

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Q. The solubility of MnSO4 2 O in water at 20 oC is 70 g per 100 mL of water.Given a solution of MnSO4 2 O of unknown concentration, what experiment c...

Solved • Dec 3, 2018

Making Solutions

Q. The solubility of MnSO4 in water at 20 oC is 70 g per 100 mL of water.Is a 1.24 M solution of MnSO4 in water at 20 oC saturated, supersaturated, or...

Solved • Dec 3, 2018

Making Solutions

Q. Which of the following is the best representation of a saturated solution?

Solved • Dec 3, 2018

Making Solutions

Q. A solution contains 25 g of NaCl per 100.0 g of water at 25˚C. Is the solution unsaturated, saturated, or supersaturated?

Solved • Dec 3, 2018

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Q. When ammonium chloride (NH4Cl) is dissolved in water, the solution becomes colder. What can you conclude about the relative magnitudes of the latti...

Solved • Dec 3, 2018

Making Solutions

Q. A solution contains 32 g of KNO3 per 100.0 g of water at 25 oC. Is the solution unsaturated, saturated, or supersaturated?

Solved • Dec 3, 2018

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Q. A KNO3 solution containing 51 g of KNO3 per 100.0 g of water is cooled from 40˚C to 0˚C. What will happen during cooling?

Solved • Dec 3, 2018

Making Solutions

Q. A KCl solution containing 42 g of KCl per 100.0 g of water is cooled from 60 m^circ C to 0 ˚C m^circ C. What happens during cooling?

Solved • Dec 3, 2018

Making Solutions

Q. An aqueous solution is saturated in both potassium chlorate and carbon dioxide gas at room temperature. What happens when the solution is warmed to...

Solved • Dec 3, 2018

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Q. Some laboratory procedures involving oxygen-sensitive reactants or products call for using preboiled (and then cooled) water. Explain why this is so.

Solved • Dec 3, 2018

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Q. A person preparing a fish tank uses boiled (and then cooled) water to fill it. When the fish is put into the tank, it dies. Explain.

Solved • Dec 3, 2018

Making Solutions

Q. The enthalpy of solution for cesium fluoride is -36.8 kJ/mol. What can you conclude about the relative magnitudes of ΔHsolute and ΔHhydration?

Solved • Dec 3, 2018

Making Solutions

Q. A solution is saturated in both nitrogen gas and potassium bromide at 75 oC. When the solution is cooled to room temperature, what is most likely t...

Solved • Dec 3, 2018

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Q. Caffeine is about 10 times as soluble in hot water as in cold water. A chemist puts a hot-water extract of caffeine into an ice bath, and some caff...

Solved • Oct 30, 2018

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Q. Sketch an enthalpy diagram for the process of dissolving KCl(s) in H2O (endothermic).

Solved • Oct 29, 2018

Making Solutions

Q. Suppose you are presented with a clear solution of sodium thiosulfate, Na2S2O3. How could you determine whether the solution is unsaturated, satura...

Solved • Oct 29, 2018

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Q. For the following solute–solvent combinations, state the sign and relative magnitudes for ΔH1, ΔH2, ΔH3, and ΔHsoln (as defined in Fig. 10‑1 of the...

Solved • Oct 29, 2018

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Q. A solution is prepared by mixing 50.0 mL toluene (C6H5CH3, d = 0.867 g/cm3) with 125 mL benzene (C6H6, d = 0.874 g/cm3). Assuming that the volumes ...

Solved • Oct 29, 2018

Making Solutions

Q. What is Brownian motion? How is it related to the development of the idea that matter is particulate?

Solved • Oct 25, 2018

Making Solutions

Q. This question has multiple parts. Work all the parts to get the most points. In a coffee-cup calorimeter, 1.17 g NH4NO3 was mixed with 55.00 g wate...

Solved • Sep 11, 2018

Making Solutions

Q. Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. Part AHow much potassium nitrate has to disso...

Solved • Sep 11, 2018

Making Solutions

Q. A solution that contains a large amount of salt and a small amount of water is said to be a _______ solution. a. dilute b. concentrated c. saturate...

Solved • Apr 2, 2018

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Q. Select the steps that are associated with energy entering the system. Check all that apply.a. the separation of solvent moleculesb. the separation ...

Solved • Mar 16, 2018

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Q. Which of the following solutions is unstable?a) An unsaturated solutionb) A saturated solutionc) A supersaturated solutiond) Both a and be) Both a ...

Solved • Oct 31, 2017

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Q. A beaker in the lab at 25 °C contains a saturated solution. More solid is added to the beaker. Which of the following statements best represents wh...

Solved • Jul 25, 2017

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Q. In a saturated solution of a salt in water, ________.A. the rate of crystallization > the rate of dissolutionB. the rate of dissolution > the...

Solved • Jul 25, 2017

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Q. If a solution is supersaturated, thenA) the solute concentration is above the solubility limit, but the system is in equilibrium.B) the solute conc...

Solved • Mar 21, 2017

Making Solutions

Q. CaCl2 has a solubility of 74 g/100g water at 20 oC. If 37g of CaCl2 are dissolved in 50 g of water at 20oC, consider the following statements:I. Th...

Solved • Sep 19, 2016

Making Solutions

Q. A solution is formed at room temperature by vigorously dissolving enough of the solid solute so that some solid remains at the bottom of the soluti...

Solved • Sep 16, 2016

Making Solutions

Q. A solution containing more than the equilibrium amount is called ____________.A) an unsaturated solutionB) a dilute solutionC) a supersaturated sol...

Solved • Sep 14, 2016

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Q. What term describes the process when two liquids are completely soluble in each other in all proportions?A) solvationB) miscibleC) unsaturatedD) sa...

Solved • Aug 25, 2016

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Q. Explain what will happen to a supersaturated solution if left in a closed container at a constant temperature over time.

Solved • Jul 7, 2016

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Q. A mixture of 100 g of K 2Cr2O7 and 200 g of water is stirred at 60°C until no more of the salt dissolves. The resulting solution is poured off, lea...

Solved • Apr 26, 2016

Making Solutions

Q. The solubility of a substance is 60 g per 100 mL of water at 15° C. A solution of this substance is prepared by dissolving 75 g in 100 mL of water ...

Solved • Apr 26, 2016

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Q. A student mixes 10.0 g of KCIO 3 with 45.0 g of H 2O and stirs it for a long time at 60 °C until the solution is completely clear, then allows it t...

Solved • Apr 25, 2016

Making Solutions

Q. A saturated solution is defined asA) a solution that is in equilibrium with both pure solvent and undissolved solute.B) a solution that is in equil...

Solved • Apr 20, 2016

Making Solutions

Q. A solution is formed at room temperature by dissolving enough of the solid solute so that some solid remains at the bottom of the solution. Which ...

Solved • Apr 11, 2016

Making Solutions

Q. Which of the following ions should have the most exothermic ΔH hydration? A) Ca 2+ B) Na + C) Sr 2+ D) Mg 2+ E) Al 3+

Solved • Apr 11, 2016

Making Solutions

Q. How much NaCl will remain undissolved if 120 g of NaCl is mixed into 100 g of water at 40°C ? a) 20 b) 40 c) 80 d) 100

Solved • Apr 7, 2016

Making Solutions

Q. A solution contains 25 g of NaCl per 100.0 g of water at 25 °C. Is the solution unsaturated, saturated, or supersaturated?

Solved • Feb 4, 2016

Making Solutions

Q. Choose the situation below that would result in an exothermic ΔH solution. a. When |ΔH solute| > |ΔH hydration| b. When |ΔH solute| is cl...

Solved • Feb 4, 2016

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