Question:
0.3 g of an acid is neutralised by 40 $cm^3$ of 0.125 N NaOH. Equivalent mass of the acid is
0.3 g of an acid is neutralised by 40 $cm^3$ of 0.125 N NaOH. Equivalent mass of the acid is
Updated On: May 12, 2024
- 60
- 45
- 30
- 63
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
For neutralization, no. of gram equivalents of the acid should be equal to no. of gram equivalents of the base.
No. of gram equivalents of NaOH $ = \frac{40}{1000} = 0.125$
$ = 5 \times 10^{-3}$
Now, $ \frac{w}{emass\, of\, acid}= 5 \times 10^{-3} $
$ \therefore$ Emass of acid = $ \frac{0.3}{5 \times 10^{-3}} = 60 $
No. of gram equivalents of NaOH $ = \frac{40}{1000} = 0.125$
$ = 5 \times 10^{-3}$
Now, $ \frac{w}{emass\, of\, acid}= 5 \times 10^{-3} $
$ \therefore$ Emass of acid = $ \frac{0.3}{5 \times 10^{-3}} = 60 $
Was this answer helpful?
0
0
Top Questions on Some basic concepts of chemistry
- Which of the following is an extensive property?
- KEAM - 2025
- Chemistry
- Some basic concepts of chemistry
- A shell in projectile motion explodes while in motion, what is the trajectory of the center of the fragments?
- KEAM - 2025
- Chemistry
- Some basic concepts of chemistry
- Choose the incorrect statement:
- KEAM - 2025
- Chemistry
- Some basic concepts of chemistry
- Select the INCORRECT statement/s from the following:
- KCET - 2025
- Chemistry
- Some basic concepts of chemistry
- A compound X contains 32% of A, 20% of B and remaining percentage of C. Then, the empirical formula of X is:
(Given atomic masses of A=64; B=40; C=32 u)- NEET (UG) - 2024
- Chemistry
- Some basic concepts of chemistry
View More Questions
Questions Asked in COMEDK UGET exam
- In the Young's double slit experiment, the 2nd bright fringe for red light coincides with the 3rd bright fringe for violet light. Then the value of 'n' is: (Given: wavelength of red light = 6300 $\text{Å}$ and wavelength of violet light = 4200 $\text{Å}$)
- COMEDK UGET - 2024
- Youngs double slit experiment
- In a given semiconductor, the ratio of the number density of electron to number density of hole is 2 : 1. If $ \frac{1}{7} $th of the total current is due to the hole and the remaining is due to the electrons, the ratio of the drift velocity of holes to the drift velocity of electrons is :
- COMEDK UGET - 2024
- Semiconductors
- If 216 drops of the same size are charged at 200 V each and they combine to form a bigger drop, the potential of the bigger drop will be
- COMEDK UGET - 2024
- Electrostatics
- The domain of the function $ y = \frac{1}{\log_{10}(3 - x)} + \sqrt{x + 7} $ is:
- COMEDK UGET - 2024
- Functions
Identify the final product formed when Toluene undergoes a series of reactions with reagents given in the order:
(i) \( \text{Cl}_2 / \text{Sunlight} \)
(ii) \( \text{H}_2\text{O}/373 \, \text{K} \)
(iii) Acetophenone / \( \text{OH}^- \) at 293 K- COMEDK UGET - 2024
- Organic Chemistry - Some Basic Principles and Techniques
View More Questions
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.