Advertisements
Advertisements
प्रश्न
Define the term Relative atomic mass.
Advertisements
उत्तर
"The relative atomic mass or atomic weight of an element is the number of times one atom of the element is heavier than `1/12` times of the mass of an atom of carbon - 12".
Relative atomic mass = Mass of 1 atom of the element `1/12` of the mass of one C12 atom.
APPEARS IN
संबंधित प्रश्न
How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?
Calculate the mole ratio of 240 g of calcium and 240 g of magnesium. (Ca = 40 u ; Mg = 24 u)
Explain the term:
Gram mole
Explain the term:
Mole
Calculate the number of molecules in 12.8g of sulphur dioxide gas. Take Avogadro's number as 6 x 1023.
[S = 32, 0 = 16 ]
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)
Solid ammonium dichromate decomposes as:
\[\ce{(NH4)2Cr2O7 -> N2 + Cr2O3 + 4H2O}\]
If 63 g of ammonium dichromate decomposes. Calculate the quantity in moles of (NH4)2Cr2O7.
1 mole of any substance contains ______ molecules.
The visible universe is estimated to contain 1022 stars. How many moles of stars are present in the visible universe?
The number of atoms present in 0.1 mole of P4 (at. mass = 31) is ______.
