What is a.m.u.? from Chemistry Some Basic Concepts of Chemistry
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    Some Basic Concepts of Chemistry

    Multiple Choice QuestionsShort Answer Type

    31.

    What is G.M.V.?

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    32.

    What is gram atom?

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    33.

    What is a.m.u.?

    One atomic mass unit is defined as a mass exactly equal to one twelfth the mass of one carbon - 12 atom.

    1 amu = 1.66056×10–24 g

     

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    34.

    Nitrogen forms five stable oxides with oxygen of the formulae N2O, NO, N2O3, N2O4, N2O5. This oxide formation explains which law of chemical combination?

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    35.

    How many moles of helium gas occupy 22.4 litres at 0°C and 1 atmosphere?

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    36.

    How will you convert 370 celsius  into Fahrenheit.

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    37.

    How many number of moles of oxygen atoms are present in 0.6 mole of hydrated oxalic acid (COOH)22H2O?

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    38.

    How many molecules of hydrogen are present in 112 mL of a gas at NTP?

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    39.

    The cost of table sugar  (C12H22O11) is Rs 6 per kg. What is its cost per mole?

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    40.

    27 g of Al will react completely with, how many grams of oxygen?

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