Advertisements
Advertisements
प्रश्न
Fill in the following blanks :
A mole represents an .............. number of particles of a substance.
Advertisements
उत्तर
A mole represents the Avogadro number of particles of a substance.
APPEARS IN
संबंधित प्रश्न
What is the mass of 1 mole of nitrogen atoms?
The percentage composition of a gas is Nitrogen 82.35%, Hydrogen 17.64%. Find the empirical formula of the gas. [N = 14, H = 1]
What name is given to the amount of substance containing this number of atoms ?
Define the term:
Avogadro’s number
Fill in the blank
One gram atom of an element contains ______ atoms.
A sample of ammonium nitrate when heated yields 8.96 litres of steam (measured at STP)
NH4NO3 → N2O + 2H2O
Determine the percentage of oxygen in the ammonium nitrate?
Find the number of molecules in 73 g of HCl.
Determine the number of molecules in a drop of water which weighs 0.09 g.
How many grams are there in the following?
2 moles of the hydrogen molecule, H2.
Calcium chloride when dissolved in water dissociates into its ions according to the following equation.
\[\ce{CaCl2} (aq) → {Ca^{2+} (aq) + 2{Cl}- (aq)}\]
Calculate the number of ions obtained from CaCl2 when 222 g of it is dissolved in water.
