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प्रश्न
Fill in the blank
One gram atom of an element contains ______ atoms.
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उत्तर
One gram atom of an element contains quantity of element which weights equal to its gram atomic mass atoms.
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संबंधित प्रश्न
Fill in the following blanks :
A mole represents an .............. number of particles of a substance.
How many atoms are there in 0.25 mole of hydrogen ?
What weight of each element is present in 1.5 moles of sodium sulphite, Na2SO3 ?
(Atomic masses : Na = 23 u ; S = 32 u ; O = 16 u)
Explain the term:
Mole
Fill in the blank
Avogadro's number is equal to ______
Given that the relative molecular mass of copper oxide is 80, what volume of ammonia (measured at STP) is required to completely reduce 120g of copper oxide? The equation for the reaction is :
3CuO + 2NH3 → 3Cu + 3H2O + N2
Find the number of molecules in 3.2 g of SO2.
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 moles in 7g of nitrogen.
Cinnabar (HgS) is a prominent ore of mercury. How many grams of mercury are present in 225 g of pure HgS? Molar mass of Hg and S are 200.6 g mol–1 and 32 g mol–1 respectively.
