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
How many moles of calcium carbonate (CaCO3) are present in 10 g of the substance ? (Ca = 40 u ; C = 12 u ; O = 16 u)
What is the mass of 5 moles of sodium carbonate (Na2CO3) ?
(Atomic masses : Na = 23 u ; C = 12 u ; O = 16 u)
What is meant by ‘a mole of carbon atoms’ ?
Deduce the number of molecules of the following compound in the given quantity.
32g oxygen
Define the term:
Relative molecular mass
Find the number of molecules in 73 g of HCl.
From the equation for burning of hydrogen and oxygen
\[\ce{2H2 + O2 -> 2H2O}\] (Steam)
Write down the number of mole (or moles) of steam obtained from 0.5 moles of oxygen.
Calculate the number of moles in 1.51 × 1023 molecules of NH4Cl.
The difference in the mass of 100 moles each of sodium atoms and sodium ions is 5.48002 g. Compute the mass of an electron.
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
magnesium oxide
