(a)
Interpretation:
The concentration of the phosphoric acid expressed in mass percentage has to be calculated.
Concept Introduction:
Mass percentage: The mass percentage gives the number of grams of solute present in 100g of solution. The formula of mass percentage is,
(b)
Interpretation:
The concentration of the solution expressed in mole fraction has to be calculated.
Concept Introduction:
Mole fraction: Mole fraction of a substance in a solution is the number of moles of that substance divided by the total number of moles of all substances present. The formula is,
(c)
Interpretation:
The concentration of the solution expressed in molality has to be calculated.
Concept Introduction:
Molality: Molality is defined as moles of solute per specified amount of mass of the solvent. The formula is,
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Chemistry: Principles and Practice
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