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  • Number of atoms in the following samples of substances is the largest in:Option: 1 4.0g of hydrogenOpti

Number of atoms in the following samples of substances is the largest in:

Option: 1

4.0g of hydrogen


Option: 2

71.0g of chlorine


Option: 3

127.0g of iodine


Option: 4

48.0g of magnesium


Answers (1)

best_answer

As we have learnt,

Number of moles = given weight / molecular weight

(i) Moles of hydrogen = 4/2
                               = 2 moles
Thus, 4 moles of hydrogen atoms

(ii) Moles of chlorine = 71/71
                              = 1 mole
Thus, 2 moles of chlorine atoms

(iii) Moles of iodine = 127/127
                            = 1 mole
Thus, 2 moles of iodine atoms

(iv) Moles of Magnesium = 48/24
                                     = 2 moles
Thus, 2 moles of magnesium atoms

Therefore, Option(1) is correct

Posted by

Shailly goel

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