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MBD-ATOMS AND MOLECULES -Example
- What does a.m.u. represent ?
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- Which isotope of carbon is used as a standard reference to express ato...
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- Most of the elements have fractional atomic masses,What does it show ...
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- What is molar mass ?
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- Define gram atomic mass.
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- How many atoms are present in 1 gram atom of an element ?
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- Do 1 mole of sodium and calcium have different number of atoms ?
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- Lead nitrate solution and sodium chloride solution taken in separate b...
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- 28 g of magnesium oxide is produced by the combination of 12 g of magn...
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- Do 1 mole of Na and O2 have same mass?
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- 1 mole represents particles.......
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- The molar mass of NH3 is ........
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- An element Z has valency of 3. Write down the formula of its oxide?
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- How many atoms are present in 0.012 kg of C^12- isotope ? What is th...
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- Write down the formula of compound made up of Al^(3+) and SO4^(2-)
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- How many molecules are present in 9g of water ?
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- What is the molecular mass of HNO3. ( Atomic masses, H=1u,N=14u,0=16u)
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- How many valence electrons are in chlorine atom.
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- What are polyatomic ions ?.
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- The molecular formula of aluminium sulphate is ......... .
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