3.3 Qualitative And Quantitative Analysis

Question 1

Why is accuracy important when measuring chemicals?

Answer 1

Accuracy ensures reliable and safe results, inaccurate measurements can lead to serious consequences

Question 2

Give 3 examples of why accuracy is important when measuring chemicals

Answer 2

1. Water testing: incorrect levels of contaminants could result in unsafe drinking water
2. Medicine dosage: too much or too little of a drug can harm or fail to treat a patient
3. Food industry: inaccurate labelling of ingredients could lead to allergic reactions or regulatory issues

Question 3

Define and explain Qualitative Analysis

Answer 3

• the process of identifying Substances present in a sample; no measurements are involved
• many qualitative analysis in chem involve colour changes

Question 4

Define and explain Quantitative Analysis

Answer 4

-The process of measuring the quantity of a substance in a sample, providing numerical data
- used to measure exact concentrations of chemicals

Question 5

Describe how quantitative analysis is used to monitor pollutants

Answer 5

Helps monitor air, soil, and water quality

Question 6

Describe how quantitative analysis is used to monitor drug testing

Answer 6

Determines the amount of a drug in a persons system, ensuring levels are safe and within legal/ medical limits