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What is the mass in grams of a single a...

What is the mass in grams of a single atom of chlorine ? (Atomic mass of chlorine = 35.5)

Text Solution

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`6.022 xx 10^(23)` atoms of Cl= gram atomic mass of Cl = 35. 5 g
`therefore` mass of 1 atom of Cl = `(35.5 g)/(6.022 xx 10^(23)) = 5.9 xx 10^(-23) g`.
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Cisplatin, an anticancer drug, has the molecular formula Pt(NH_3)_2 Cl_2. What is the mass (in gram) of one molecule ? (Atomic masses : Pt=195, H=14, Cl=35.5 )

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Knowledge Check

  • Calculate the mass (in grams) of a single C-12 atom.

    A
    `1.993xx10^(-23)g`
    B
    `2.875xx10^(-23)g`
    C
    `4.162xx10^(-23)g`
    D
    `3.786xx10^(-23)g`

  • Chlorine atom and chloride ions

    A
    have an equal number of protons
    B
    have an equal number of electrons
    C
    form covalent bonds
    D
    react spontaneously with water

  • When 32.25 gm ethyl chloride dehydro halogenated, if gives 50%. Alkene, what is the mass of product. (atomic mass of chlorine = 35.5)

    A
    14 gm
    B
    28 gm
    C
    64.5 gm
    D
    7 gm

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    Explain why chlorine has relative atomic mass of about 35.5 u?

    What will be the mass of one atom of C-12 in grams?

    For every one ""^37Cl isotopes there are three ""^35Cl isotopes in a sample of chlorine. What will be the average atomic mass of chlorine?

    Calculate the mass of 2.5 gram atoms of oxygen.

    The mass of an atom is due to the masses of protons and neutrons in the nucleus. The relative masses of protons and neutrons are almost equal to one. Therefore, the atomic mass of an element should be nearly a whole number. But in many cases the atomic masses are fractional. The main reason for these fractional atomic masses is that these elements occur in nature as a mixture of several isotopes. The atomic mass of an element is the average of the atomic masses of these isotopes in the ratio of their proportion of occurrence. Chlorine occurs in nature in the form of two isotopes with atomic masses 35 u and 37 u in the ratio of 3 : 1 respectively. Atomic mass of chlorine is

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