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n.1Find the total numbers of natural number 'n' for which 111 divides 16" - 1 where 'n' is less than 1000.D-2How marHow many Positive integers are there from 1 tn non |
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Answer» One mole of H2 O is made up of 2 moles of Hydrogen atoms and 1 mole of Oxygen atom. Mass of 1 mole of Hydrogen atoms= 1 g /molMass of 1mole of Oxygen atoms = 16 g/mol Mass of two moles of Hydrogen atoms = 2x 1 g/mol = 2 g/mol.Mass of one mole of Oxygen atoms = 1 x 16 g /mol Mass of one mole of water = 2 g/mol + 16 g/mol = 18 g/mol. |
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