LEC: Lesson 1

Question 1

Measurement of science

Answer 1

Analytical chemistry

Question 2

Pathfinder spacecraft and Sojourner rover: chemical composition of rocks and soil

Answer 2

July 1997

Question 3

rovers Spirit and Opportunity (3 month mission) deposits of silica and carbonate

Answer 3

January 2004

Question 4

Mars Science Laboratory aboard rover Curiosity with a host of analytical instruments (identity and amounts of major, minor, and trace elements and can detect hydrated minerals

Answer 4

Late 2011

Question 5

Chemical identity of the species in the sample

Answer 5

Qualitative analysis

Question 6

Determines the relative amount

Answer 6

Quantitative analysis

Question 7

Determines the mass of the analyte

Answer 7

Gravimetric method

Question 8

Determines the volume of a solution

Answer 8

Volumetric methods

Question 9

The measurement of electrical properties as voltage, current, resistance, and quantity of electrical charge

Answer 9

Electroanalytical methods

Question 10

Based on the measurement of the interaction between electromagnetic radiation and analyte atom

Answer 10

Spectroscopic methods

Question 11

First question that must be considered in the selection process

Answer 11

Choosing a method

Question 12

Second step in a quantitative analysis that producer meaning full information

Answer 12

Acquiring the sample

Question 13

Can be distinguished visibly

Answer 13

Heterogenous

Question 14

Determining how much of a sample is giving

Answer 14

Assay

Question 15

collecting a small mass of a material whose composition accurately represents the bulk

Answer 15

Sampling

Question 16

Third step in analysis where a sample is processed more than once

Answer 16

Processing the sample

Question 17

4th step of analysis. Includes the removing of the variables that may affect the sample

Answer 17

Eliminating interferences

Question 18

Analytes that affect the final measurement

Answer 18

Interferences or interferents

Question 19

5th step in analysis. Where the test is performed

Answer 19

Calibrating and measuring concentration

Question 20

The process of determining k is thus an important step in most analyses

Answer 20

Calibration

Question 21

6th step in analysis. Computing the analyze concentrations

Answer 21

Calculating results

Question 22

Final step in analysis. Where the reliability is estimated

Answer 22

Evaluating results by estimating reliability