Question:
$3\,g$ of activated charcoal was added to $50\,mL$ of acetic acid solution ($0.06\,N$) in a flask. After an hour it was filtered and the strength of the filtrate was found to be $0.042\, N$. The amount of acetic acid adsorbed (per gram of charcoal) is
$3\,g$ of activated charcoal was added to $50\,mL$ of acetic acid solution ($0.06\,N$) in a flask. After an hour it was filtered and the strength of the filtrate was found to be $0.042\, N$. The amount of acetic acid adsorbed (per gram of charcoal) is
Updated On: Sep 30, 2024
- 18 mg
- 36 mg
- 42 mg
- 54 mg
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The Correct Option is A
Solution and Explanation
$CH _{3} COOH (0.06 M )$
$50 \,ml$
$m$. moles $=50 \times 0.06=3$
$m$. moles left $=50 \times 0.042=2.1$
$m$. moles absorbed $=0.9$
mass absorbed $=\frac{0.9 \times 10^{-3} \times 60}{3} \times 10^{3}$
$=\frac{54}{3}=18\, mg$
$50 \,ml$
$m$. moles $=50 \times 0.06=3$
$m$. moles left $=50 \times 0.042=2.1$
$m$. moles absorbed $=0.9$
mass absorbed $=\frac{0.9 \times 10^{-3} \times 60}{3} \times 10^{3}$
$=\frac{54}{3}=18\, mg$
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Concepts Used:
Some Basic Concepts of Chemistry
Chemistry is a vast subject and for understanding its significance we can take help of following points:
- Chemistry plays an important role in understanding various subjects like physics, geology and biology.
- Chemistry is a core branch of science that explains us about the various compositional properties and interaction of matter. It also helps to understand various chemical reactions.
- Chemistry is important in order to understand the behaviour of fertilizers, alkenes, acids, salts, dyes, polymers, drugs, soaps and alloys in organic and inorganic chemistry.
- Chemistry plays an important role in various fields like healthcare, industrial, research, food, and farm activities.
Read More: Some Basic Concepts of Chemistry
Classification of Matter
There are two ways of classifying the matter:
(A) Physical Classification:
Matter can exist in three physical states:
- Solids - have definite volume and definite shape
- Liquids - have definite volume but not definite shape.
- Gases - have neither definite volume nor definite shape.
(B) Chemical Classification:
Based upon the composition, matter can be divided into two main types:
- Pure Substances are defined as a single substance (or matter) which cannot be separated by simple physical methods. Pure substances can be further classified as (i) Elements (ii) Compounds
- Mixtures are the combination of two or more elements or compounds which are not chemically combined together and may also be present in any proportion.