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Manipal MET2023ChemistrySome Basic Concepts of Chemistry

The number of Cl ⁻ ions in 100 mL of 0.001 M NaCl solution is

Options

  1. A6.022 10²³
  2. B6.022 10²⁰
  3. C6.022 10¹⁹
  4. D6.022 10²¹

Correct answer

C. 6.022 10¹⁹

Step-by-step solution

100 mL of 0.001 M NaCl ⁻² contain Cl ⁻¹ ions aligned & = 0.001 1000 100=10⁻⁴ ~mol & =10⁻⁴ (6.022 10²³ )=6.022 10¹⁹ Cl ⁻ ions aligned

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