Question 1

How many moles of KCl are present in 50.0 mL of a 0.552 M solution?

Accepted Answer

A)  0.0276 mol
B)  0.0906 mol
C)  11.0 mol
D)  35.2 mol
E)  50.6 molF) D) and E)
G) C) and D)

Question 2

Vitamin D is essential for the normal development of teeth and bones.A tablet of Vitamin D is tested for its solubility in water and benzene.The results are shown in the table below.What is the most appropriate interpretation of the solubility results?   water  benzene (C6H6)  insoluble  soluble \begin{array}{|l|r|}\hline 	ext { water } & 	ext { benzene }\left(\mathrm{C}_{6} \mathrm{H}_{6}ight)  \\hline 	ext { insoluble } & 	ext { soluble } \\hline\end{array} water  insoluble ​ benzene (C6​H6​)  soluble ​​

Accepted Answer

A)  Vitamin D is likely a nonpolar substance.
B)  Vitamin D is likely a polar substance.
C)  Vitamin D is likely a bipolar substance.
D)  Vitamin D is likely an ionic compound.
E)  It is impossible to say anything about the polarity of Vitamin D without knowing its structure. F) None of the above
G) B) and D)

Question 3

Which statement concerning solution concentration is FALSE?

Accepted Answer

A)  An unsaturated solution contains less than the maximum amount of solute that can be dissolved in the solvent.
B)  A saturated solution contains more than 100 g of dissolved solute.
C)  The concentration of a saturated solution is equal to the solubility of the solute.
D)  A solution can be made less concentrated by adding additional solvent.
E)  The molarity of a solution is the number of moles of solute present in one liter of the solution.F) A) and B)
G) B) and E)

Question 4

What is the boiling point of a 1.5 m solution of NaCl? [kb = 0.52°C/m]

Accepted Answer

A)  100.78°C
B)  99.22°C
C)  98.44°C
D)  100.52°C
E)  101.56°CF) C) and D)
G) B) and E)

Question 5

A student needs to prepare 250.0 mL of a 2.50 M HCl solution using the stock solution 12.0 M HCl.What volume of 12.0 M HCl is required for this dilution?

Accepted Answer

A)  12.0 mL
B)  25.0 mL
C)  52.1 mL
D)  5.21 mL
E)  2.50 mLF) A) and C)
G) C) and D)

Question 6

An aqueous solution containing a nonvolatile solute such as sucrose will boil above 100°C at 1 atm pressure.

Accepted Answer

A) True 
 B)False

Question 7

A student mixes 4.0 g of KNO3 with 5.0 mL of water at room temperature,and observes that most,but not all,of the KNO3 has dissolved.Which statement concerning this solution is TRUE?

Accepted Answer

A)  The solution is considered supersaturated,since no additional KNO3 will dissolve.
B)  The solution is considered unsaturated,since not all of the KNO3 dissolved.
C)  The solubility of KNO3 in water has been exceeded.
D)  KNO3 is a water insoluble ionic compound.
E)  In order to get the additional KNO3 to dissolve,the student can add more solute.F) C) and D)
G) D) and E)

Question 8

A typical blood serum concentration of  HPO42−\mathrm { HPO } _ { 4 } ^ { 2 - }HPO42−​     is 2 meq/L.What is the concentration of this ion expressed in mol/L?

Accepted Answer

A)  0.001 mol/L
B)  1 mol/L
C)  0.002 mol/L
D)  0.0003 mol/L
E)  0.004 mol/L F) C) and D)
G) C) and E)

Question 9

What mass of glucose is contained in 500.0 mL of a 5.00% (m/V) solution?

Accepted Answer

A)  5.00 g
B)  25.0 g
C)  250 g
D)  50.0 g
E)  55.0 gF) A) and C)
G) A) and B)

Exam 6: Solutions

What is the boiling point of a 1.5 m solution of NaCl? [k_b= 0.52°C/m]

Correct Answer
verified

How many moles of KCl are present in 50.0 mL of a 0.552 M solution?

Correct Answer
verified

An aqueous solution containing a nonvolatile solute such as sucrose will boil above 100°C at 1 atm pressure.

Correct Answer
verified

A student needs to prepare 250.0 mL of a 2.50 M HCl solution using the stock solution 12.0 M HCl.What volume of 12.0 M HCl is required for this dilution?

Correct Answer
verified

A student mixes 4.0 g of KNO₃ with 5.0 mL of water at room temperature,and observes that most,but not all,of the KNO₃ has dissolved.Which statement concerning this solution is TRUE?

Correct Answer
verified

Correct Answer
verified

A typical blood serum concentration of $\mathrm { HPO } _ { 4 } ^ { 2 - }$ is 2 meq/L.What is the concentration of this ion expressed in mol/L?

Correct Answer
verified

What mass of glucose is contained in 500.0 mL of a 5.00% (m/V) solution?

Correct Answer
verified

Which statement concerning solution concentration is FALSE?

Correct Answer
verified

Exam 6: Solutions

What is the boiling point of a 1.5 m solution of NaCl? [kb = 0.52°C/m]

Correct AnswerverifiedShow Answer

How many moles of KCl are present in 50.0 mL of a 0.552 M solution?

Correct AnswerverifiedShow Answer

An aqueous solution containing a nonvolatile solute such as sucrose will boil above 100°C at 1 atm pressure.

Correct AnswerverifiedShow Answer

A student needs to prepare 250.0 mL of a 2.50 M HCl solution using the stock solution 12.0 M HCl.What volume of 12.0 M HCl is required for this dilution?

Correct AnswerverifiedShow Answer

A student mixes 4.0 g of KNO3 with 5.0 mL of water at room temperature,and observes that most,but not all,of the KNO3 has dissolved.Which statement concerning this solution is TRUE?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A typical blood serum concentration of HPO42−\mathrm { HPO } _ { 4 } ^ { 2 - }HPO42−​ is 2 meq/L.What is the concentration of this ion expressed in mol/L?

Correct AnswerverifiedShow Answer

What mass of glucose is contained in 500.0 mL of a 5.00% (m/V) solution?

Correct AnswerverifiedShow Answer

Which statement concerning solution concentration is FALSE?

Correct AnswerverifiedShow Answer

What is the boiling point of a 1.5 m solution of NaCl? [k_b= 0.52°C/m]

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A student mixes 4.0 g of KNO₃ with 5.0 mL of water at room temperature,and observes that most,but not all,of the KNO₃ has dissolved.Which statement concerning this solution is TRUE?

Correct Answer
verified

Correct Answer
verified

A typical blood serum concentration of $\mathrm { HPO } _ { 4 } ^ { 2 - }$ is 2 meq/L.What is the concentration of this ion expressed in mol/L?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified