
What is the volume of 0.1N HCl required to react completely with 1.0g of pure calcium carbonate
A . 150 cm3
B . 200 cm3
C . 250 cm3
D . 100 cm3
Answer
162.9k+ views
Hint: In this question we have to use the concept of normality. The quantity of solute in a solution measured in grams or moles per litre is referred to as normality. The amount of moles of reactive units in a compound is what we mean when we say it is equivalent.
Complete answer:Normality is the amount of the substance that dissolves in one litre of solution or one gram of the substance. The reactive capacity of a molecule can be described as its gram-equivalent weight. It is expressed in terms of "N," "eq/L," or "meq/L," where "eq" stands for equivalents and "meq" for milliequivalent. For titration calculations, normality is the most preferable method of measuring concentration.
$Normality=\dfrac{Gram\text{ }equivalent\text{ }of\text{ }solute}{volume\text{ }of\text{ }solution\text{ }in\text{ }litres}$
Not all reactions use this unit of measurement. Normality is determined using gram equivalent weight, which is one of the reasons it is rarely utilized. The quantity of ions that engage in a reaction determines this. Depending on the type of reaction occurring, it could change. Gram equivalent weight is not constant as a result.
Given:
N=0.1, w=1.0gm, Equivalent weight CaCO3=50
Using the law of equivalence
neq=N×V$\Rightarrow V=\dfrac{{{n}_{eq}}}{N}$
$V=\dfrac{w\times 1000}{Eq.wt\times N}=\dfrac{1\times 1000}{50\times 0.1}$
V=200cm3
The correct answer is B.
Note: Molarity and normality are closely related concepts. A multiple of molarity can be used to describe normality. Molarity, on the other hand, relates to the concentration of a substance or ion in a solution, whereas normality simply refers to the molar concentration of the solution's acid or basic components.
Thus, normality provides a deeper comprehension of the concentration of the solution in acid-base processes. One of the key distinctions between a solution's normality and molarity is that the former refers to the quantity of compound per gram equivalent present in the solution, whilst the latter refers to the number of moles contained in the solution.
Complete answer:Normality is the amount of the substance that dissolves in one litre of solution or one gram of the substance. The reactive capacity of a molecule can be described as its gram-equivalent weight. It is expressed in terms of "N," "eq/L," or "meq/L," where "eq" stands for equivalents and "meq" for milliequivalent. For titration calculations, normality is the most preferable method of measuring concentration.
$Normality=\dfrac{Gram\text{ }equivalent\text{ }of\text{ }solute}{volume\text{ }of\text{ }solution\text{ }in\text{ }litres}$
Not all reactions use this unit of measurement. Normality is determined using gram equivalent weight, which is one of the reasons it is rarely utilized. The quantity of ions that engage in a reaction determines this. Depending on the type of reaction occurring, it could change. Gram equivalent weight is not constant as a result.
Given:
N=0.1, w=1.0gm, Equivalent weight CaCO3=50
Using the law of equivalence
neq=N×V$\Rightarrow V=\dfrac{{{n}_{eq}}}{N}$
$V=\dfrac{w\times 1000}{Eq.wt\times N}=\dfrac{1\times 1000}{50\times 0.1}$
V=200cm3
The correct answer is B.
Note: Molarity and normality are closely related concepts. A multiple of molarity can be used to describe normality. Molarity, on the other hand, relates to the concentration of a substance or ion in a solution, whereas normality simply refers to the molar concentration of the solution's acid or basic components.
Thus, normality provides a deeper comprehension of the concentration of the solution in acid-base processes. One of the key distinctions between a solution's normality and molarity is that the former refers to the quantity of compound per gram equivalent present in the solution, whilst the latter refers to the number of moles contained in the solution.
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