Chemistry Lab Safety Final 5.1.1

Of the following, which are the tree most likely oxidizing agents to be used in introductory chemistry experiments? I. Nitric acid II. Hydrogen peroxide III. Potassium permanganate IV. Chlorine a. I, II, and III b. I, II, and IV c. I, III, and IV d. II, III, and IV

a. I, II, and III

Which statement is true? a. corrosive bases are generally more dangerous that corrosive acids because corrosive acids damage tissue in a fashion whereby a somewhat protective layer is forms that prevents further damage b. corrosive acids are generally more dangerous that corrosive bases because corrosive acids damage tissue in a fashion whereby a somewhat protective layer is forms that prevents further damage c. corrosive bases are generally more dangerous that corrosive acids because the body is better able to neutralize corrosive acids d. corrosive acids are generally more dangerous that corrosive bases because the body is better able to neutralize corrosive bases

a. corrosive bases are generally more dangerous that corrosive acids because corrosive acids damage tissue in a fashion whereby a somewhat protective layer is forms that prevents further damage

Which acid is also a strong oxidizing agent? a. nitric acid b. sulfuric acid c. hydrosulfuric acid d. all of the above

a. nitric acid

Corrosive gases are not used directly in introductory chemistry experiments, but a. they are sometimes encountered when using solutions of nitric acid or ammonia b. they are sometimes produced as a by-product of many common reactions c. they can be produced when chemicals are inadvertently mixed d. even when used they present little hazard since it is common to wear respirator when using them

a. they are sometimes encountered when using solutions of nitric acid or ammonia

What is the correct procedure for preparing the dilution of a solution of acid a. add the acid to water as quickly as possible b. add the acid to water slowly with stirring c. add the water to acid as quickly as possible d. add the water to acid slowly with stirring

b. add the acid to water slowly with stirring

At what concentration are acids and bases generally considered to be corrosive? a. greater the 0.1M b. greater than 1M c. greater than 3M d. greater than 6M

b. greater than 1M

Which of the following are three corrosive acids most likely to be encountered in introductory chemistry courses? I. Acetic acid II. Sulfuric acid III. Hydrochloric acid IV. Nitric acid a. I, II, and III b. I, III, and IV c. II, III, and IV d. I, II, and IV

c. II, III, and IV

Which base, at high concentration, will also have a corrosive gas associated with it? a. NaOH b. KOH c. NH4OH d. LiOH

c. NH4OH

What is the best strategy to avoid contact with corrosive chemicals? a. wear chemical splash goggles b. wear appropriate gloves c. wear chemical splash goggles and appropriate gloves d. always work in a chemical hood

c. wear chemical splash goggles and appropriate gloves

The potential for injury from an acid depends on which of the following? I. The chemical structure of the acid II. The concentration of the acid in solution III. The area of exposure (such as skin vs. eyes) IV. The duration of exposure V. The temperature of the solution a. I, II, and IV b. II, III, and IV c. I, II, III, and IV d. I, II, III, IV, and V

d. I, II, III, IV, and V

Corrosives can be in which of the following forms? I. Liquids II. Solids III. Gases IV. Solutions a. Only I and IV b. Only I, II, and III c. Only I and II d. I, II, III, and IV

d. I, II, III, and IV

Which base is not likely to be used in an introductory chemistry course a. NaOH b. KOH c. NH4OH d. LiOH

d. LiOH

Corrosives are chemicals that a. have a pH between 0 and 14 b. are acids or bases c. are rarely encountered in introductory chemistry classes d. cause harm or injury by damaging tissue at the point of contact

d. cause harm or injury by damaging tissue at the point of contact