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प्रश्न
Define or explain the term:
Relative atomic mass
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उत्तर
The relative atomic mass 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.
संबंधित प्रश्न
What is the mass of 4 moles of aluminium atoms (Atomic mass of aluminium = 27)?
Fill in the following blanks :
A mole represents an .............. number of particles of a substance.
Calculate the mass in grams of 0.17 mole of hydrogen sulphide, H2S. (Atomic masses : H = 1 u, S = 32 u)
Define the term:
Avogadro’s number
Fill in the blank
Avogadro's number is equal to ______
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
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Define the term:
Gram atom
How many grams of H2O are present in 0.2 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?
How many grams are there in the following?
5 moles of sulphur molecule, S8
