Question

calculate : (i) the number of water molecules (ii) the number of H and O atoms and (iii) the number of electrons protons and neutrons in 9 gram of water



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Answer 1

Explanation:

Number Of Water Molecules

1.) Molecules in a drop of water = (6.022 x 10*23 molecules/mole) x 0.002275 moles. molecules in a drop of water = 1.67 x 1021 water molecules.

Number Of Hydrogen And Qxygen Atoms In H20

2.) There are three atoms in a water molecule: an oxygen atom and two atoms of hydrogen, which are bonded together like small magnets. The number of atoms present within each molecule represents the second conversion factor. 4 hydrogen atoms and 2 oxygen atoms are found in two water molecules.

Number of electrons protons and neutrons in 9 gram of water

3.) Let mass of H2O be 9.0 g

9.0 g H2O x (mol H2O/18g H2O) x (8.0 mol of neutrons/mol of H2O) x (6.0^23 neutrons/mol of neutrons) =

(9.0 x 8.0 x 6.0 x ^23) / 18) = 2.4 ^24 neutrons

Answer 2

HEY MATE HERE IS UR ANSWER

1) 2) AND 3)

ALL 3 IN ABOVE ATTACHMENT

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