EASY
JEE Main
IMPORTANT
Earn 100
Find (i) the total number of neutrons, and (ii) the total mass of neutrons in of . (Assume that the mass of a neutron mass of a hydrogen atom)
Important Questions on Elementary Problems Based on Definition of Mole: The Mole Concept
EASY
JEE Main
IMPORTANT
How many moles are there in of any gas at Round off the answer up to two decimal places.
EASY
JEE Main
IMPORTANT
of a salt of molecular weight is dissolved in of water. Calculate the molality of the solution.
EASY
JEE Main
IMPORTANT
Calculate the volume in litres which occupied by of nitrogen at and of pressure.
Give the answer within two decimal places.
EASY
JEE Main
IMPORTANT
Find the ratio of the number of molecules contained in of and of .
HARD
JEE Main
IMPORTANT
How many molecules of are contained in one liter of air if the volume content of is at is . Find out the value of p?
EASY
JEE Main
IMPORTANT
Is the number of molecules in of and of the same? What is the ratio of weights of and the mixture of which contains equal number of molecules of each gas?
EASY
JEE Main
IMPORTANT
The measured density at of a gaseous sample of a compound was found to be What is the weight of mole of the gaseous sample?
EASY
JEE Main
IMPORTANT
If the concentration of a solution is . Calculate the number of milli-moles present in of the solution.
