$$\frac{10\,\text{g}}{250\,\text{mL}} \times 100 = 4\%$$

$$pH = -\log(1 \times 10$$^{-3}$$) = 3$$

$$[H^+] \times [OH^-] = 1 \times 10$$^{-14}$$

Question 1

Which of the following statements best describes a saturated solution?

Accepted Answer

A solution in which no more solute can dissolve at a given temperature.

Question 2

A 250 mL solution contains 10 g of NaCl. What is the mass/volume percent ($$\%\,(m/v)) of $$NaCl in the solution?

Accepted Answer

$$\frac{10\,	ext{g}}{250\,	ext{mL}} 	imes 100 = 4\%$$

Question 3

Which compound is a strong electrolyte when dissolved in water?

Accepted Answer

NaCl

Question 4

Red blood cells placed in a hypertonic NaCl solution will:

Accepted Answer

Shrink due to water leaving the cell.

Question 5

Which of the following is a Brønsted-Lowry base?

Accepted Answer

NH3

Question 6

What is the pH of a solution with $$[H^+] = 1 	imes 10$$^{-3}$$ M?

Accepted Answer

$$pH = -\log(1 	imes 10$$^{-3}$$) = 3$$

Question 7

Which of the following pairs can form a buffer solution?

Accepted Answer

CH3COOH and CH3COONa

Question 8

Which of the following is the correct balanced equation for the combustion of propane ($$C_3H_8$$)?

Accepted Answer

$$C_3H_8 + 5O_2 \rightarrow 3CO_2 + 4H_2O$$

Question 9

Which intermolecular force is most significant between molecules of octane ($$C_8H_{18}$$)?

Accepted Answer

London dispersion forces

Question 10

Which of the following is a secondary alcohol?

Accepted Answer

2-propanol (isopropanol)

Question 11

What is the product of the oxidation of ethanol ($$CH_3CH_2OH) $$with a strong oxidizing agent?

Accepted Answer

Acetic acid ($$CH_3COOH)$$

Question 12

Which compound is most likely to be soluble in water?

Accepted Answer

Methanol ($$CH_3OH)$$

Question 13

Which of the following is the correct IUPAC name for the compound with the condensed formula $$CH_3CH_2CH_2OH$$?

Accepted Answer

1-propanol

Question 14

Which of the following is a correct application of Markovnikov's Rule in the addition of HBr to 2-butene?

Accepted Answer

The Br atom attaches to the more substituted carbon of the double bond.

Question 15

Which of the following is the correct formula for acetone (propanone)?

Accepted Answer

$$CH_3COCH_3$$

Question 16

A solution is prepared by diluting 50 mL of 2.0 M NaCl to a final volume of 200 mL. What is the final concentration?

Accepted Answer

$$M_1V_1 = M_2V_2 \Rightarrow M_2$ = \frac{M_1V_1}{V_2$} = \frac{2.0 	imes 50}{200} = 0.5\,	ext{M}$$

Question 17

Which of the following is the correct product for the mono-halogenation of methane ($$CH_4) $$with chlorine?

Accepted Answer

$$CH_3Cl + HCl$$

Question 18

Which of the following compounds is an aldehyde?

Accepted Answer

$$CH_3CHO$$

Question 19

Which of the following is the correct equation relating $$[H^+]$$ and $$[OH^-] in $$aqueous solution?

Accepted Answer

$$[H^+] 	imes [OH^-] = 1 	imes 10$$^{-14}$$

General Chemistry Study Guide: Solutions, Acids & Bases, Hydrocarbons, and Functional Groups

스터디 가이드 - 연습 문제