Question

Question 11 pts

Match the definition with it's correct word.

A mixture composed of a solute dissolved in a solvent.

      [ Choose ]            Solute            Solution            Soluble            Miscible            Insoluble            Solvent            Immiscible      

The greater substance that does the dissolving in a solution.

      [ Choose ]            Solute            Solution            Soluble            Miscible            Insoluble            Solvent            Immiscible      

A term that describes when a solid solute does not dissolve in a solid solvent.

      [ Choose ]            Solute            Solution            Soluble            Miscible            Insoluble            Solvent            Immiscible      

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Question 21 pts

Choose the one best description for the solubility of ionic compounds in water.

When ionic compounds dissolve in water, the ion-dipole force is present between the ions and the water molecules.

When ionic compounds dissolve in water, the hydrogen-bridging force is present between the ions and the water molecules.

When ionic compounds dissolve in water, the ion-dipole force is present between the atoms and the water molecules.

When ionic compounds dissolve in water, the dipole-dipole force is present between the ions and the water molecules.

When ionic compounds dissolve in water, the London force is present between the ions and the water molecules.

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Question 31 pts

The "Like Dissolves Like" rule for covalent compounds states that                           [ Select ]                       ["polar", "nonpolar", "solutes", "solvents"]         solutes will dissolve in nonpolar                           [ Select ]                       ["solvents", "polar", "solutes", "nonpolar"]         .

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Question 41 pts

a. Br2(l) is                            [ Select ]                       ["soluble", "insoluble", "miscible", "immiscible"]         in C6H6(l)

b. C8H18(l) is                           [ Select ]                       ["immiscible", "insoluble", "miscible", "soluble"]         in C6H6(l)

c. AgCl(s) is                            [ Select ]                       ["immiscible", "insoluble", "soluble", "miscible"]       in C6H6(l)

d. NaAcetate(s) is                           [ Select ]                       ["immiscible", "miscible", "soluble", "insoluble"]         in C6H6(l)

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Question 51 pts

a. I2(s) is                            [ Select ]                       ["miscible", "immiscible", "soluble", "insoluble"]         in NH3(l)

b. C3H8(l) is                            [ Select ]                       ["immiscible", "insoluble", "soluble", "miscible"]       in NH3(l)

c. PCl3(l) is                            [ Select ]                       ["insoluble", "soluble", "immiscible", "miscible"]       in NH3(l)

d. CH3OH(l) is                           [ Select ]                       ["insoluble", "soluble", "immiscible", "miscible"]         in NH3(l)

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Question 61 pts

What is the mass percent of potassium chloride when 9.35 grams of potassium chloride is mixed into 162.98 grams of water? Choose the answer with the appropriate significant figures and choose the correct unit.

                           [ Select ]                       ["5.426", "5.43", "7.70", "5.737", "5.74"]                                   [ Select ]                       ["% KCl", "M KCl", "g KCl", "g H2O", "% H2O"]      

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Question 71 pts

Calculate the mass of sodium hydroxide needed to make 125 g of a sodium hydroxide solution that has a mass percent of 10.0%. Choose the answer with the appropriate significant figures and choose the correct unit.

                           [ Select ]                       ["12.5", "1250", "8.00", "40.0", "12.50"]                                   [ Select ]                       ["mg NaOH", "g NaOH", "% NaOH", "g NaH", "M NaOH"]      

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Question 81 pts

Choose all answers that express a molarity value. Select all that apply.

0.2310 g

12 m

70 M

0.05 mol/L

55 mol

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Question 91 pts

750 mL of a solution is made with 4.00 g of NaOH. Calculate the molarity of the solution. Choose the answer with the appropriate significant figures and choose the correct unit.

                           [ Select ]                       ["0.000133", "0.133", "0.13", "0.0053", "0.00013"]                                   [ Select ]                       ["mol", "M", "g/L", "L", "m"]      

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Question 101 pts

What is the molarity when 31.50 grams of potassium chloride is added to water to make a 1.25 L solution? Choose the answer with the appropriate significant figures and choose the correct unit.

                           [ Select ]                       ["0.338", "25", "25.2", "338", "0.34"]                                   [ Select ]                       ["M", "g/L", "mM", "m", "mol/mL"]