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AN INTRODUCTION TO QUANTITATIVE ANALYSIS.

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Points to note:

1. Quantitative Analysis refers to the processes involved in the determination of the exact amount of substances present in a sample.

2.Quantitative Analysis can be done either volumetrically or gravimetrically.

3.Quantitative Analysis is employed in science and medical laboratories as well as pharmaceutical industries.

Apparatus for quantitative analysis and their uses.

*Burette: It is used to measure the amount of liquid transferred into another substance.

*Beam balance: It is used to precisely measure the mass 
of a sample.

*Bunsen Burner: It is used as a heat source during preparation of solution for analysis. It is often used alongside tripod stand.

*Retort stand and clamp:
They are used to hold burette and other glass wares in upright positions.

*Pipette: It is used to measure exact volumes of liquid.

Volumetric cylinder: It can be used to perform the function of pipette.

*Funnels: Ensures that liquids are transferred into narrow openings of glass wares without spilling.

Watch glass: for weighing solids before preparing solutions.

Beakers: for collecting and pouring of liquids.

Safety equipments such as gloves, lab coat, safely goggles, face mask.

MASS AND MOLAR CONCENTRATION.

*The mass concentration of a sample is the amount of mass of that sample that is dissolved in one dm cube or a thousand cm cube solution. It is measured in g/dm cube.


*The molar concentration of a sample is the number of moles of that sample that it dissolved in 1 DM cube or thousand CM cube of a solution and is measured in mol/dm cube.

*Molar concentration is calculated as mass concentration divided by molar mass.

*A standard solution is a solution of known concentration.

*The fomular used to obtain the concentration of an unknown sample from a standard solution is given by 
CaVa÷CbVb =Na÷Nb
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