Advertisements
Advertisements
प्रश्न
The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.
Advertisements
उत्तर
The relative atomic mass of Cl atom is 35.5 a.m.u. because chlorine consists of a mixture of two isotopes of masses 35 and 37 in the ratio of 3 : 1.
The average of the isotopic masses is 35 x 3 + 37 x 4 = 35.5
Concept Insight: Isotopes are atoms of same having same atomic number but different mass number.
APPEARS IN
संबंधित प्रश्न
One of the following elements has an atomicity of ‘one’. This element is :
What is a group of 6.022 × 1023 particles known as ?
How many moles are 3.6 g of water ?
How many atoms are there in 0.25 mole of hydrogen ?
Two oxides of a metal (M) have 20.12% and 11.19% oxygen. The formula of the first oxide is MO. Determine the formula of the second oxide.
Find the number of molecules in 1.8 g of H2O.
Calculate the mass of 0.1 mole of the following:
CaCO3
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
Correct the statement, if required.
One mole of chlorine contains 6.023 x 1010 atoms of chlorine.
Calculate the number of gram atoms in 4.6 gram of sodium.
Calculate the number of moles in 7g of nitrogen.
