The process of determination and identification.

Identifies or determines the various types of elements and compounds that are in a substance.

Measures and determines the amount or quantity of the different chemicals or components in the substances being analyzed.

Involves the identification and production of radioactive elements and their use in the study of chemical processes.

The components of a sample that are to be determined.

Utilizes volumes of solutions ranging from 5 to 100 mL or more.

Volumes used range from 1 drop to approximately 1mL

True or False: In semi-micro qualitative analysis, small volumes in small test tubes are used. Small volumes of liquids are conveniently removed from centrifuged solids with capillary pipets.

True or False: Liquid reagents are added with medicine droppers.

True or False: All equipment is washed thoroughly with dishwashing liquid, rinsed thoroughly with tap water, and finally rinsed with distilled water.

Grade chemicals conform to the minimum standards set forth by the Reagent Committee of the American Chemical Society (ACS) and are used wherever possible in analytical work.

Standard reagents have been carefully analyzed by the supplier, and the assay is printed on the container label.

Chemicals that have been prepared for a specific application are also available. Included among these are solvents for spectrophotometry and high–performance liquid chromatography (HPLC).

True or False: Select the best grade of chemical available for analytical work. Whenever possible, pick the smallest bottle that will supply the desired quantity.

True or False: Replace the top of every container immediately after removal of the reagent; please rely on someone else to do this.

True or False: Hold the stoppers of reagent bottles between your fingers; never set a stopper on a desktop.

True or False: Unless specifically directed otherwise, return any excess reagent to a bottle.

Select Multiple: May be effective in removing grease films

Can be used for marking for porcelain\ surfaces.

Are necessary to decrease the volume of a solution that contains a nonvolatile solute.

Permits the vapors to escape; protects the remaining solution from accidental contamination.

Provide space between the rim of the beaker and ribbed cover glass.

Sudden, often violent boiling that tends to spatter solution out of its container.

True or False: Chlorine and Nitrate can be removed from a solution by adding sulfuric acid and evaporating until copious white fumes of sulfur trioxide are observed.

True or False: Ammonia is effective in removing nitrate ions and nitrogen oxides from acidic solutions.

True or False: Ammonium ion is rapidly oxidized upon heating; the solution is then evaporated to dryness.

Oxidation of the organic constituents of a sample with oxidizing reagents. E.g. HNO₃, H₂SO₄, H₂O₂

In most analyses, an analytical balance must be used to obtain highly accurate masses. Less accurate laboratory balances are also employed in the analytical laboratory for mass measurements where the demands for reliability are not critical.

Weighing instrument with a maximum capacity that ranges from 1g to several kilograms and a precision at maximum capacity of at least 1 part in 10⁵.

Most common type of balance. It has a maximum load of 160 to 200g and a precision of 0.1 mg.

Have a maximum load of 1 to 3 g and a precision of 0.001 mg or 1 microgram.

Have a maximum load of 10 to 30g with a precision of 0.01 mg.

Have a maximum load of 1 to 3 g and a precision of 0.001 mg or 1 microgram.

The mass of an empty sample container.

Process of setting a balance to read zero with the tare on the pan.

Advantage: Automatic taring control feature; Faster Reading.

Disadvantage: Stay breezes will cause significant fluctuations in the weight (sensitive); Electricity dependent;

Advantages: Direct Reading; Air control feature

Disadvantages: Sensitive

Useful for the removal of spilled material or dust.

True or False: The sample must be cooled before weighing.

Recur in a constant manner in each of a series of determination. Controllable or it can be reduced; Affects accuracy quantified by the difference between the mean and the true value.

Slight variations in a series of observations made by the same observer under identical conditions; Affects the precision quantified by standard deviation; Difficult to detect.

Due to inattention, carelessness, or personal limitations of the analyst. This error can be corrected by self-discipline.

Due to non-ideal behavior or reagents or reactions. It can be corrected by blank determination.

Due to imperfections in measuring devices. Due to inappropriate use of devices corrected by calibration.

Weighing error that develops when the object being weighed has a significantly different density than the weights.

For weighing that does not require great accuracy.

Advantages: Speed, ruggedness, large capacity, and convenience. They should be used whenever high sensitivity is not required.

Convenient (150-200g)

Simple, durable, and low cost.

Uses: Storage and Weighing.

A device used for storing and drying substances or objects to minimize the uptake of moisture.

Which of the choices is not a chemical drying agent?

Indicates group 1 cations

Indicates lead

Confirmatory agent.

Which of these is not under titration analysis.

How many drops do you need to complete .50mL?

where: 1mL=20 gtts or 20 drops

Active Ingridients; USP. USP means?

Inactive Ingridients/Excipients; NF. NF means?

NISP means?

HPLC means?