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Some Basic Conc...

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  • Question 1
    4 / -1

    The value of amu is which of the following ?

  • Question 2
    4 / -1

    How many moles of magnesium phosphate, Mg3 (PO4)2 will contain 0.25 mole of oxygen atoms ?

  • Question 3
    4 / -1

    The mass of 112 cm3 of CH4 gas at STP is

  • Question 4
    4 / -1

    The total number of protons in 10 g of calcium carbonate is
    (N0 = 6.023 x 1023)

  • Question 5
    4 / -1

    The mass of 1 mole of electrons is

  • Question 6
    4 / -1

    Which of the following is correct for
    C(graphite) + O2 → CO2 , Heat = - 348 kJ ?

  • Question 7
    4 / -1

    A signature, written in carbon pencil weighs 1 mg. What is the number of carbon atoms present in the signature ?

  • Question 8
    4 / -1

    How many moles of Al2 (SO4)3 would be in 50 g of the substance ?

  • Question 9
    4 / -1

    The number of molecules of CO2 present in 44 g of CO2 is

  • Question 10
    4 / -1

    2 g of O2 at 0oC and 760 mm of Hg pressure has volume

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