quiz laboratorio 1

Question 1

scient. met. step 1

Answer 1

state the problem

Question 2

scient met. step 2

Answer 2

research the prob. what will it take to solve my problem. What do I know, what do I need to know to solve my pr0blem.

Question 3

scient. met. step 3

Answer 3

FORM A HYPOTHESIS: a possible solution to my problem. the simplest solution is often the best solution.

Question 4

scient. met. step 4

Answer 4

test the hypothesis. perform an experiment to see if the hypothesis works.

Question 5

scient. met. step 5

Answer 5

Draw conclusion from the data. Data are results from an experiment. Two possible conclusions: conclusion1: hypothesis correct. conclusion2: hypothesis incorrect, hypothesis failed. do more research.
continue process until problem solved.

Question 6

This unit will help you become familiar with:
This unit will also help you learn to:

Answer 6

-safety procedures, rules, and regulations necessary to protect you and others in the laboratory.

• safely use common laboratory equipment.

Question 7

objectives of the lab

Answer 7

1. Identify hazardous materials.
2. Safely and properly, use laboratory chemicals, glassware, materials, and equipment.
3. Locate and use the emergency exits, fire extinguishers, first aid kits, telephone, and fire alarm
   system

Question 8

There are two important sources of information we need to get acquainted with when
using specific chemicals:

Answer 8

-the Material Safety Data Sheet, now called the Safety
Data Sheet.
-the Hazardous Material Labeling.

Question 9

Every chemical manufacturer/importer who provides the science laboratory with chemicals and other
materials is required to provide:

Answer 9

a Material Safety Data Sheet (MSDS)

Question 10

What is a Material Safety Data Sheet (MSDS)?

Answer 10

This is a technical bulletin
detailing information about hazardous chemicals.

Question 11

The MSDS must be written in ________ and contain
the following information:

Answer 11

-English
 The chemical and common name of all ingredients having known health hazards present in
concentrations greater than 1%
 The health hazards and primary routes of bodily entry of hazardous materials
 The precautions for safe handling and use, along with procedures for spill/leak cleanup
 The proper emergency first aid procedure
 The date of preparation, name, address, and telephone number of the company or the
responsible employee distributing the MSDS.

Question 12

Since __________, the _______________________ (OSHA) has requested
that the MSDS information be present in _______. In this technical bulletin called the
________, the information is uniformly organized into __ sections

Answer 12

-June 2015
-Occupational Safety and Health Administration
-a new format
-Safety Data Sheet (SDS)
-16

Question 13

Section 1:

Answer 13

Identification: includes product identifier; manufacturer or distributor name,
address, phone number; emergency phone number; recommended use; restrictions on
use.

Question 14

Section 2:

Answer 14

Hazard(s) identification includes all hazards regarding the chemical;
required label elements.

Question 15

Section 3:

Answer 15

Composition/information on ingredients: includes information on chemical
ingredients, trade secret claims.

Question 16

Section 4:

Answer 16

First-aid measures: includes important symptoms/effects, acute, delayed;
required treatment.

Question 17

Section 5:

Answer 17

Fire-fighting measures lists suitable extinguishing techniques, equipment;
chemical hazards from fire.

Question 18

Section 6:

Answer 18

Accidental release measures: lists emergency procedures; protective
equipment; proper methods of containment and cleanup.

Question 19

Section 7:

Answer 19

Handling and storage: lists precautions for safe handling and storage,
including incompatibilities.

Question 20

Section 8:

Answer 20

Exposure controls/personal protection: lists OSHA’s Permissible Exposure
Limits (PELs); ACGIH Threshold Limit Values (TLVs); and any other exposure limit
used or recommended by the chemical manufacturer, importer, or employer preparing
the SDS where available as well as appropriate engineering controls; personal protective
equipment (PPE).

Question 21

Section 9:

Answer 21

Physical and chemical properties: lists the chemical’s characteristics.

Question 22

Section 10:

Answer 22

Stability and reactivity: lists chemical stability and possibility of hazardous
reactions.

Question 23

Section 11:

Answer 23

Toxicological information: includes routes of exposure; related symptoms, acute and chronic effects; numerical measures of toxicity.

Question 24

Section 12:

Answer 24

Ecological information

Question 25

Section 13:

Answer 25

Disposal considerations

Question 26

Section 14:

Answer 26

Transport information

Question 27

Section 15:

Answer 27

Regulatory information

Question 28

Section 16:

Answer 28

Other information, includes the date of preparation or last revision.

Question 29

Employers must ensure that SDSs are:

Answer 29

readily accessible to employees

Question 30

In this lab, we allow the use of:

Answer 30

the MSDS and the SDS.