EASYVIT - VITEEE 2025
National level exam conducted by VIT University, Vellore | Ranked #11 by NIRF for Engg. | NAAC A++ Accredited | Last Date to Apply: 7th April | NO Further Extensions!
Mole Concept Basic - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main
Quick Facts
-
MOLE CONCEPT AND MOLAR MASS is considered one the most difficult concept.
-
81 Questions around this concept.
Solve by difficulty
If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will
The number of water molecules is maximum in :
If Avogadro number NA, is changed from 6.022 x 1023 mol-1 to 6.022 x 1020 mol-1, this would change :
JEE Main Session 2 Questions: April 3: Shift 1 | Shift-2 | April 2: Shift 1 | Shift-2 | Overall Analysis
JEE Main 2025: Mock Tests | PYQs | Rank Predictor | College Predictor | Admit Card Link
New: Meet Careers360 experts in your city | Official Question Papee-Session 1
Apply to TOP B.Tech /BE Entrance exams: VITEEE | MET | AEEE | BITSAT
The number of molecules and moles in 2.8375 litres of at STP are respectively
Match List I with List II
Choose the correct answer from the options given below:
A sample of $\mathrm{CaCO}_3$ and $\mathrm{MgCO}_3$ weighed $2.21 \mathrm{~g}$ is ignited to constant weight of $1.152 \mathrm{~g}$. The composition of mixture is: (Given molar mass in $\mathrm{g} \mathrm{mol}^{-1} \mathrm{CaCO}_3: 100, \mathrm{MgCO}_3: 84$ )
Molar Mass = Vapour density X 2 , is valid for :
How many atoms are contained in a mole of 2- HYDROXY-PROPANOIC ACID (Lactic acid).
How many volume will $\mathrm{CO}_2$ gas will occur in 88 g of its at STP?
JEE Main 2025 - 10 Full Mock Test
Aspirants who are preparing for JEE Main can download JEE Main 2025 mock test pdf which includes 10 full mock test, high scoring chapters and topics according to latest pattern and syllabus.
Download EBookNumber of moles in 80 g of Calcium is
Concepts Covered - 1
MOLE CONCEPT AND MOLAR MASS
Mole:
-
A mole is a unit that represents 6.023 x 1023 particles, atoms, molecules or ions, etc., irrespective of their nature.
-
Mole is related to the mass of the substance, the volume of gaseous substance and the number of particles
-
Here G.m.m. = Gram molecular mass or molar mass which is the mass of 1 mole of any substance
-
-
The volume of one mole of any gas is equal to 22.4 litres or dm3 at STP. It is known as molar volume.
-
Relationship of Mole:
A mole of any substance (like O2) stands for:
-
6.023 x 1023 molecules of O2
-
2 x 6.023 x 1023 atoms of Oxygen
-
32 gm of Oxygen
-
22.4 litre of O2 at STP.
To Find the Total Number of Identities:
-
Total number of Molecule = mole(n) x NA
-
Total number of Atoms = mole (n) x NA x No. of atoms present in one molecule (atomicity).
-
Total number of Electrons = mole (n) x NA x No. of electron present in one atom.
-
Total charge on any ion = mole (n) x NA x charge on one ion x 1.6 x 10-19 C
Study it with Videos
MOLE CONCEPT AND MOLAR MASS"Stay in the loop. Receive exam news, study resources, and expert advice!"
Books
Reference Books
Clear your Basics with NCERT
E-books & Sample Papers
Get Answer to all your questions
JEE Main Articles
Back to top