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Define Basic Calculations during the practical work in Laboratory?
Some basic mathematical formulas and conversion factors are given herewith to help you in your calculations during the practical work.
A molar solution consists of the relative molecular mass (mole) of a substance (in grams) in 1 litre of solution. For instance, a molar solution of sodium chloride contains 58.5 g NaCl in 1 litre, because the molecular mass (one mole) of NaCl is 58.5 (Na atomic mass 23 + Cl atomic mass 35.5).
• 1 millilitre (ml) is one thousandth (10-3 ) of a litre • 1 microlitre (µl) is one millionth (10-6 ) of a litre • 1 milligram (mg) is one thousandth (10-3 ) of a gram • 1 microgram (µg) is one millionth (10-6 ) of a gram • The term "parts per million" (ppm) is no longer used; it is equivalent to µg/ml
With this we end our study of this practical.
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