CHEM 2225 LAB Introduction to Analytical Chemistry Quiz

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What type of analysis renders the sample unusable for succeeding analyses?

Destructive analysis (correct)

Instrumental analysis

Gravimetric analysis

Non-destructive analysis

What is the concentration range for a minor constituent in analytical methods?

Less than 0.01%

0.01% to 1.00% (correct)

Beyond 1.00%

None of the above

Which of the following analytical methods uses sophisticated instruments to measure the analyte's physical and chemical properties?

Titrimetric methods

Instrumental methods (correct)

Gravimetric methods

Ion methods

What is the sample size range for a micro analysis?

1.0 to 10 mg (or 10-50 μL) Signup and view all the answers

Which of the following analytical methods is considered non-destructive?

Some instrumental analyses Signup and view all the answers

What is the primary focus of analytical chemistry?

Characterizing the composition and structure of matter Signup and view all the answers

Which of the following is NOT an application of analytical chemistry?

Synthesizing new pharmaceutical drugs Signup and view all the answers

What is the difference between a selective and a specific analytical method?

A selective method can analyze multiple substances, while a specific method can only analyze one substance. Signup and view all the answers

Which of the following statements about qualitative and quantitative analytical methods is correct?

Qualitative methods provide information about the identity of species, while quantitative methods provide numerical information about amounts. Signup and view all the answers

What is the primary difference between wet-analysis and instrumental methods in analytical chemistry?

Wet-analysis involves the use of chemical reactions, while instrumental methods do not. Signup and view all the answers

Which of the following statements is NOT true about analytical chemistry?

It is only concerned with inorganic compounds and materials. Signup and view all the answers

CHEM 2225 LAB Introduction to Analytical Chemistry Quiz

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