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6g of hydrogen gas is:
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Chemistry
Basic Concepts of Chemistry
How many atoms are present in one mole of water?
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Chemistry
Basic Concepts of Chemistry
What are number of moles of oxygen atoms in 11g of $C0_{2}$ gas?
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Chemistry
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The number of moles of hydrogen atoms in 3.2 g of methane $CH_{4}$ (Relative atomic mass of H=1 , C=12):
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Chemistry
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One mole of carbon 12 has mass:
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Chemistry
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The mass of one mole of electrons is:
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One mole of $SO_{2}$ contains
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In case of $CCl_{4}$, HCl and $NH_{3}$ formulas both empirical and molecular formulas are:
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Molecular formula
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The formula which represents actual number of atoms of each element in a molecule is called:
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In combustion analysis, % of oxygen is calculated by subtracting other percentages from:
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In combustion analysis, % of carbon is calculated from:
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In combination analysis, % of hydrogen is calculated from:
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Chemistry
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Empirical formula for benzene is:
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Empirical formula for glucose is:
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Chemistry
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The formula mass of an ionic compound is called:
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Chemistry
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Simplest formula that gives us information about the simplest ratio of atoms in compound is called:
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Chemistry
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Isotopes due to difference in their masses are called
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Chemistry
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Fractional atomic mass is due to number of possible isotopes and their natural:
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Large number of isotopes are known for the elements whose masses are multiple of:
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More abundant isotope of an element is the one with:
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The properties of an element correspond to the properties of that isotopes which is most:
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Sn has:
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Mass spectrometer separates different positive isotopic ions of the basis of their
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Chemistry
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Isotopes have same position in:
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