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CalculatetotalamountChargeof Positive in360 gm ofwater |
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Answer» ong>Answer: 5.348×10^6 C Explanation: molecular weight of water = 18g/mol ∴ number of mole of water = given weight/molecule weight = 100/18 = 5.55 MOLES ∵ 1 mole of water CONTAINS = 10 mole of electrons [ H₂O , 2 electrons of H and 8 electrons of O ] ∴ 5.55 moles of water contain 10 × 5.55 = 55.5 mole of electrons. Now, number of electrons = number of mole of electrons × Avogadro's number = 55.5 × 6.023 × 10²³ = 334.27 × 10²³ = 3.3427 × 10²⁵ Hence, number of electrons = 3.34 × 10²⁵ ∵ charge on each electron = -1.6 × 10⁻¹⁹C ∴ total charge = number of electrons × charge on each electron = 3.34 × 10²⁵ × 1.6 × 10⁻¹⁹ C = 5.348 × 10⁶ C Hence, total charge = 5.348 × 10⁶C |
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