Advertisements
Advertisements
Question
Fill in the following blanks :
A mole represents an .............. number of particles of a substance.
Advertisements
Solution
A mole represents the Avogadro number of particles of a substance.
APPEARS IN
RELATED QUESTIONS
How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?
Calculate the mass in grams of 0.17 mole of hydrogen sulphide, H2S. (Atomic masses : H = 1 u, S = 32 u)
How many grams of HCl are present in 0.1 mole of it?
The molecular formula for elemental sulphur is S8.In a sample of 5.12 g of sulphur:
How many molecules and atoms are present?
A student puts his signature with a graphite pencil. If the mass of carbon in the signature is 10-12 g, calculate the number of carbon atoms in the signature.
Correct the statement, if required.
The relative atomic mass of an element is the number of times one molecule of an element is heavier than `1/12` the mass of an atom of C12.
Calculate the number of gram atoms in 4.6 gram of sodium.
1 mole of any substance contains ______ molecules.
Calculate the number of moles in 27g of Al.
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.
