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 0.5 mole of water molecules?
How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?
If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the mass of one atom of oxygen.
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
Sodium chloride
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
How many moles of carbon dioxide are produced when one mole of octane burns?
Define or explain the term:
Relative atomic mass
Calculate the mass of 0.1 mole of the following:
Na2SO4.10H2O
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
Calculate the mass of 0.1 mole of the following:
CaCl2
(Ca = 40, Na=23, Mg =24, S=32, C = 12, Cl = 35.5, O=16, H=1)
The molecular formula for elemental sulphur is S8.In a sample of 5.12 g of sulphur:
How many molecules and atoms are present?
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
magnesium oxide
