amory9989 amory9989
  • 16-11-2022
  • Chemistry
contestada

calculate the molarity of a solution made by adding 200.0 ml of water to 95.00 ml of a 0.157 m solution.

Respuesta :

kumarprabhat kumarprabhat
  • 18-11-2022

0.0505 mol·L⁻¹ is the molarity of the solution

You are diluting the solution with water, so you can use the dilution formula

с₁∨₁=с₂∨₂

You can solve this equation to get

с₂=с₁×∨₁/∨₂

с₁=0.157 mol·L⁻¹,∨₁=95.00 mL

с₂=?, ∨₂=95.00 mL + 200.0 mL = 295.0 mL

с₂= 0.157 mol·L⁻¹ × 95.00 mL/ 295 mL = 0.0505 mol·L⁻¹

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