What are the two main branches of analytical chemistry?

Quantitative analysis and qualitative analysis

Fill in the blank: The process of __________ isolates the required chemical species for analysis.

Separation

True or False: Qualitative analysis measures the exact amount of a substance in a sample.

False. Qualitative analysis determines the quality or presence of a substance, not its quantity.

What classical method is commonly used to check for the presence of gold?

The acid test for gold

Riddle: I change color when I react, testing blood or a chemical pact. What am I?

Phenolphthalein in the Kastle-Meyer test

What is the role of gravimetric analysis in quantitative analysis?

It determines the amount of a substance by measuring weight changes, such as the loss of water from a hydrate.

Which instrumental method measures the interaction between electromagnetic radiation and a sample?

Spectroscopy

Fill in the blank: __________ analysis is used to determine the concentration of pesticide residues in food samples.

Analytical

Short Answer: Why is analytical chemistry important in the pharmaceutical industry?

It ensures the safety and efficacy of medicines by checking for adulterants and determining shelf life.

What method involves adding a reactant until an equivalence point is reached?

Volumetric analysis, also known as titration