Question

How much positive and negative change there in 150cubic meter of water?​

Answer 1

Answer:

Let us consider that one cup of has 250 ml of water

Density of water is 1 g/cc in cgs system

Therefore the mass of one cup of water =250 g

Molecular weight of water =18 g

Number of moles of water in 250gram=

18

250

=13.888moles

We know that one mole=6.02×10

23

molecules.

The number of molecules in one cup of water=13.888×6.02×10

23

=8.36×10

24

molecules.

1 molecule of water=2hydrogen(2 protons)+1oxygen(8 protons)

Total protons in one water molecule=10=Total number of electrons.

Total positive and negative charge has the same magnitude.

We know charge of proton=1.6×10

−19

C

Total positive charge in 250g of water in cup=10×8.36×10

24

×1.6×10

−19

=1.338×10

7

C

So i one cup of water (250ml) there are 1.338×10

7

C positive charge and −1.338×10

7

C negative charge

Totally they will be neutral

Answer 2

Explanation:

hlo mate here's your answer

Let us consider that one cup of has 250ml of water

Density of water is 1 g/cc in cgs system

Therefore the mass of one cup of water

=

250

g

Molecular weight of water

=

18

g

Number of moles of water in 250

gram

=

18

250

=

13.888

moles

We know that one mole

=

6.02×

10 23

molecules.

The number of molecules in one cup of water

=

13.888×

6.02×

10 23

8.36×

10 24

molecules.

1 molecule of water

=

2

hydrogen( 2 protons)+1oxygen(8 protons)

Total protons in one water molecule

=

10=

Total number of electrons.

Total positive and negative charge has the same magnitude.

We know charge of proton

=

1.6×

10 −19

C

Total positive charge in 250

g of water in cup

=

10×

8.36×

10 24

1.6×

10 −19

1.338×

10 7

C

So i one cup of water (250

ml) there are

1.338×

10 7

C positive charge and

−1.338×

10 7

C negative charge

Totally they will be neutral.

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