Advance Data Analysis Methods

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What is the primary purpose of triplicates in analytical chemistry?

To obtain a minimum of 16 samples per data point

To analyze expensive samples

To increase the precision of measurements (correct)

To reduce the cost of analysis

What is the main goal of treating the data in analytical chemistry?

To obtain a calibration curve

To identify the analytes

To calculate the desired results (correct)

To determine the cost of analysis

Which type of analysis determines properties at a macroscopic level?

Wet analysis

Chemical analysis

Physical analysis (correct)

Instrumental analysis

What is the purpose of a watch glass in laboratory analysis?

To hold solids while being weighed Signup and view all the answers

Which apparatus is designed to measure small mass below the milligram range?

Analytical balance Signup and view all the answers

What is the value of an analytical procedure based on?

Its reliability and accuracy Signup and view all the answers

What is the primary purpose of a Bunsen burner in a laboratory setting?

To heat, sterilize, and combust materials Signup and view all the answers

What is the primary purpose of a Petri Dish?

To hold growth medium for culturing cells Signup and view all the answers

What is the main difference between a graduated cylinder and a beaker?

The accuracy of volume measurements Signup and view all the answers

What is the primary function of a pipet?

To transport a high-accuracy measurement of liquid volumes Signup and view all the answers

Which laboratory device uses a rotating magnetic field to stir a liquid?

Magnetic Stirrer Signup and view all the answers

What is the purpose of a Desiccator?

To preserve moisture-sensitive items Signup and view all the answers

What is the main purpose of a laboratory oven?

To use dry heat for sterilization Signup and view all the answers

What is the primary function of a test tube?

To handle chemicals for qualitative experiments and assays Signup and view all the answers

Which laboratory equipment is used for liquid-liquid extractions?

Separatory Funnel Signup and view all the answers

What is the primary function of a volumetric flask?

To contain a precise volume of a liquid at a certain temperature Signup and view all the answers

What is the purpose of a Hot Plate in wet chemical analysis?

To heat reactions to higher temperatures than room temperature Signup and view all the answers

What is the primary function of a Centrifuge?

To separate various components of a fluid Signup and view all the answers

What is the primary purpose of an Erlenmeyer flask in laboratory settings?

To collect, store, and approximate measurement of liquid samples Signup and view all the answers

What is the main characteristic of a Florence flask that allows for uniform heating?

Round body and flat bottom Signup and view all the answers

What is the purpose of a UV-VIS spectrometer in laboratory analysis?

To analyze the ultraviolet and visible spectral regions of a substance Signup and view all the answers

What is the function of an interferometer in a FTIR instrument?

To create a pattern of light resulting from the combined constructive and destructive interference of all component wavelengths Signup and view all the answers

What is the primary use of a burette in laboratory settings?

To evaporate liquids, hold solids, and heat small amounts of substances Signup and view all the answers

What is the common feature among Erlenmeyer flasks and Florence flasks?

Flat bottom and cylindrical neck Signup and view all the answers

What is the primary method of atomization used in atomic absorption spectroscopy?

Electrothermal vaporization Signup and view all the answers

Which analytical technique is used to determine the structure of organic compounds with abundant neighboring hydrogen in their carbon backbones?

Nuclear Magnetic Resonance Signup and view all the answers

What is the purpose of the high energy electron beam in Mass Spectrometer?

To cause total destruction and fragmentation of the molecules Signup and view all the answers

In which areas of chemistry is Atomic Absorption Spectroscopy used?

Clinical analysis, pharmacology, biophysics, archaeology, and toxicology Signup and view all the answers

What is the primary region of the spectrum used in Nuclear Magnetic Resonance?

Very low energy radio wave region Signup and view all the answers

How many different elements can be determined using Atomic Absorption Spectroscopy?

Over 70 Signup and view all the answers