help on fractions

Fraction is an equal part of one whole object. Fraction can be represented as " p/q " where 'p' denotes the value called numerator and 'q' denotes the value called denominato..

Fractional crystallization or fractional distillation cannot bring about resolution. This is because the enantiomorphs have identical physical properties. Some of the methods used for resolution are a) Mechanical separation b) Biochemical separation c) Salt formation d) Selecti..

Fractional distillation is employed to separate two or more liquids that are miscible. The boiling points of these liquids should be fairly far apart. When distilled, the liquid with the lower boiling point distils over first, and is collected. It is the first fraction. It consi..

Separation of petroleum into simpler fractions after the removal of unwanted material..

It is the ratio of number of moles of one component (solute or solvent) to the total number of moles of all the components (solute and solvent) present in the solution. It is denoted by the symbol X. Let us suppose that a solution contains two components A and B and suppose that n A moles of A an..

If the impure compound is a mixture of two compounds whose solubility in any solvent does not differ significantly from one another, then the two compounds are separated by fractional crystallization. This is a series of repeated crystallisations. For instance when a solution containing ..

Identify the fraction. => 1 2 or 1 4 or 2 3 or 1 3..

This method is used to separate two or more solutes, by making use of their difference in solubility. If we want to separate potassium nitrate from a mixture that contains about 80 g of potassium nitrate and 20 g of sodium chloride. We will dissolve this mixture in about 100 g of water and then hea..

Refining of Petroleu..

Convert 30% into a fraction and find the reciprocal of the fraction. => 4 11 or 3 10 or 2 5 or 10 3..