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A compound contains 4.07% hydrogen, 24.2...

A compound contains `4.07%` hydrogen, `24.27%` carbon and `71.65%` chlorine . Its molar mass is 98.96 g. What are its empirical and molecular formulas ?

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Knowledge Check

  • A gaseous compound is composed of 85.7% by mass of carbon and 14.3% by mass hydrogen. Its density is 2.28 g/L at 300 K and 1 atm pressure. Determine molecular formula of the compound.

    A
    `C_2H_2`
    B
    `C_2H_4`
    C
    `C_4H_8`
    D
    `C_4H_10`

  • A compound contains K=42.39%, Fe=15.23% and C=19.44% N=22.8260 % . The molecular mass of the compound is 368. Find the molecular formula of the compound

    A
    `K_3[Fe(CN)_6]`
    B
    `K[Fe(CN)_4]`
    C
    `K_4[Fe(CN)_6]`
    D
    `K_2[Fe(CN)_4]`

  • A given sample of pure compound contains 9.81 gm of Zn, 1.8 xx 10^23 atoms of chromium and 0.6 mole of oxygen atom. What is the simple molecular formula of the sample ? [Atomic mass of Zn = 65.38]

    A
    `ZnCr_2O_7`
    B
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    C
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    D
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    Butyric acid contains C,H,O elements. A4.24 mg sample of butyric acid is completely burnt in oxygen. It gives 8.45 mg of carbon dioxide and 3.46 mg of water. What is the mass percentage of each element? Determine the empirical and molecular formula of butyric acid if its molecular mass is 88u.

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    What is the simplest formula of the compound which has the following percentage composition: carbon 80%, Hydrogen 20%, If the molecular mass is 30, calcualte its molecular formula.

    A compound composed of carbon, hydrogen and chlorine contains C=10.04% and Cl=89.12%. The vapour density of the compound is 59.75. determine its molecular formula.

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