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two elements x and y have atomic weights of 14 and 16. they form a series of compounds a b c d e

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2 g of hydrogen combine with 16 g of oxygen to form water and with 6 g of carbon to form methane

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the law of Reciprocal proportions was given by

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in compound a 1 g nitrogen unites with 0.57 g oxygen In compound b 2 g nitrogen combines

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the law of multiple proportions is illustrated by the two compounds

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carbon and oxygen combine to form two oxides, carbon monoxide and carbon dioxide in which the ratio

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two samples of lead oxide were separately reduced to metallic lead by heating in a current of hydrog

0:04:33

if the masses of Mn and O are in the ratio of 55: 16 in MnO what is the ratio of O that combines

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among the following pairs of compounds, the one that illustrates the law of multiple proportions is

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the law of multiple proportions was proposed by

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Total number of atoms represented by the compound znso4.5h2o is

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the weight of a molecule of the compound c60h122 is

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In chemical scale the relative mass of the isotopic mixture of oxygen atoms (O-16, O-17, and O-18)

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1 amu is equal to

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q6 what is the atomic weight of hydrogen? assuming the hydrogen atom as spherical and the radius of

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Which of the following is reference atom for modern atomic weight scale?

0:02:35

there are two isotopes of chlorine 17cl35 and 17cl37. their relative masses are respectively 35 & 37

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what is mass of one oxygen molecule? (1) 16 gram (2) 16 amu (3) 32 gram (4) 32 amu

0:02:13

What is the molecular mass of glucose C6H12O6

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A giant molecule contains 0.25% of a metal whose atomic weight is 59. Its molecule contains one atom

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Vapour density of a gas is, if its density is 0.178 g/l at ntp

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Molecular wt. = Vapour density × 2, is valid for - (1) Metals (2) Non metals (3) Solids (4) Gases

0:05:56

density of a gas stp is 1.43 gm/lit. What is its molecular weight?

0:01:38

the weight of one atom of uranium is 238 amu | Its actual weight is