Respuesta :
Number of moles in 5 gm of water is given as
[tex]n = \frac{5}{18} = 0.28 moles[/tex]
1 mole consist of Avagadro number of molecules of water
so total number of water molecules
[tex]N_w = 0.28 \times 6.02 \times 10^{23}[/tex]
[tex]N_w = 1.67 \times 10^{23}[/tex]
now we know that each water molecule will have 10 number of proton in it
so total number of protons in all the molecules is given as
[tex]N_p = 10(1.67 \times 10^{23}) = 1.67 \times 10^24[/tex]
now we know that total charge is given as
[tex]Q = Ne[/tex]
so we will have
[tex]Q = (1.67 \times 10^{24})(1.6 \times 10^{-19})[/tex]
[tex]Q = 2.68\times 10^5 C[/tex]
so above is the charge due to all water molecules
Answer:
267200 C
Explanation:
As we know that 1 mole of water contains 6.023 x 10^23 molecules
1 mole of water = 18 g of water
So, 18 g of water contains 6.023 x 10^23 molecules
Each molecule contains 10 protons
So, 18 g water contains = 6.0123 x 10^23 x 10 protons
5 g water contains = 6.023 x 10^24 x 5 / 18 protons
= 1.67 x 10^24 protons
1 proton has a positive charge of 1.6 x 10^-19 C
So, total positive charge on 5 g water = 1.6 x 10^-19 x 1.67 x 10^24 = 267200 C
