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Estimate the number of electrons in 100 ...

Estimate the number of electrons in 100 g water. How much is the total negative charge on these electrons?

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No. of electrons in `18 gms of H_2O`
` 6.023xx1023xx10 `
` =6.023xx10^24 `
No. of electrons in `100 gms of H_2O`
` =0.334xx10^26 `
` =3.34xx10^25 `
` Total charge=3.34xx10^25xx1.6xx10^-19 `
` =5.34xx10^6C`
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HC VERMA-ELECTRIC FIELD AND POTENTIAL-Exercises
  1. Suppose the second charge in the previous problem is -1.0 xx 10^(-6) C...

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  2. Two charged particles are placed at a distance 1.0 cm apart. What is t...

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  3. Estimate the number of electrons in 100 g water. How much is the total...

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  4. Suppose all the electrons of 100 g water are lumped together to form a...

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  5. Consider a gold nucleus to be a sphere of redius 6.9 fermi in whichpr...

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  6. Two insulating small spheres are rubbed against each other and placed ...

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  7. Na Cl moecule is bound due to the electreic force between the sodium a...

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  8. Find the ratio of the electric and gravitational forces between two pr...

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  9. Suppose ana attractive nuclear force acts between two protons which ma...

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  10. Three equal charges, 2.0xx 10^(-6) C each, are held fixed at the thr...

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  11. Four equal charges 2.0xx10^(-6) C each are fixed at the four corners o...

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  12. A hydrogen atom contains one proton and one electron. It may be assume...

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  13. Find the speed of the electron in the ground state of hddrogen atom. T...

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  14. Ten positively charged particles are kept fixed on the x-axis at point...

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  15. Two charged particles having charge 2.0xx 10^(-8)C each are joined by ...

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  16. Two indentical balls, each having a charge of 2.00xx10^(-7) C and a ma...

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  17. Two identical pith balls are charged by rubbing against each other. T...

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  18. Two small spheres, each having a mass of 20 g, are suspended form a co...

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  19. Two indentical pith balls, each carrying charge q, are suspended from...

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  20. A particle having a charge of 2.0xx10^(-4) C is placed directly below ...

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