Analytical Chemistry T1-T3

Analytical Chemistry is a brach of chemistry concerned with the following EXCEPT for

• Identification

• Separation

• Qualification

• Quantification

Which of the following is an example of quantitative analytical method?

• Pop sound upon insertion of burning splint

• Testing the acidity of soda drinks using red litmus paper

• Testing the basicity of soil using blue litmus paper

• reading pH of drinking water using a pH probe

The following are the common units used for formality EXCEPT for

• Mol/dm³

• F

• m

• Mol/L

Listed below are several things to consider in analytical chemistry when dealing with samples in analytical chemistry

• Batch or continuous sample

• Nature of sample

• Quantity of the sample

• All of the following

Which of the following is correctly illustrates good accuracy but poor precision?

• 
• 
• 
• 

Sensitivity of an experiment is a function of __________ of the calibration curve and precision of instrument

• Signal

• Slope

• Concentration of analyte

• Blank Signal

Which of the following is used to calculate the accuracy of a set of experimental results?

• Standard Deviation

• Absolute Error

• Variance

• Range

Precision is divided into two categories:

• Reproducibility and Repeatability

• Repeatability and Resonability

• Repeatability and Responsibilty

• Reproducibility and Responsibility

_______________ is an error introduced during the process of collecting  a sample for analysis.

• Method Error

• Sampling Error

• Personal/Human Error

• Measurement Error

The part labelled W in the elemental information represents the

• Atomic Mass

• Symbol

• Element Name

• Atomic Number