rubyjones rubyjones
  • 03-02-2020
  • Chemistry
contestada

how many moles of Ca(No3)2 are dissolved in 4.55 kg of water in a 0.68 m solution

Respuesta :

monica789412 monica789412
  • 10-02-2020

3.094 moles of Ca(No3)2 are dissolved in 4.55 kg of water in a 0.68 m solution

Explanation:

1 Kg=1 L for pure water at 4 degrees. So assuming the solvent as pure water, the volume of solution is 4.55 Kg.

Molarity of the solution is given as 0.68

From the formula:

C=n/V    ( C concentration of solution) and V ( volume of the solution)

n= C*V

  = 0.68*4.55

   =  3.094

3.904 of solute is dissolved to make 4.55 liters of solution to obtain a 0.68 m solution

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