Q 8. Define the following terms: -
(i) Mass percent
(ii) Normality
( m ) Molarity
Answers
Explanation:
(i) Mole fraction
It is the ratio of the number of moles of a particular component to the total number of moles of all the components in the mixture. It is denoted by symbol χ.
(ii) Molality
It is the number of moles of the solute per kilogram of the solvent. It is the ratio of the number of moles of solute to the mass of solvent in kg.
(iii) Molarity
It is the number of moles of solute per litre of the solution. It is the ratio of the number of moles of solute to the volume of solution in litre.
(iv) Mass percentage
The mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. The mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%.
Answer:
mass percent :
Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%.
normality:
Normality is a measure of concentration equal to the gram equivalent weight per litre of solution. Gram equivalent weight is the measure of the reactive capacity of a molecule. The solute's role in the reaction determines the solution's normality. Normality is also known as the equivalent concentration of a solution.
molarity:
Molarity is defined as the moles of a solute per liters of a solution. Molarity is also known as the molar concentration of a solution.
Explanation:
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